Adam Ritz
(University of Victoria)
12/06/2016, 13:30
Oral (Non-Student) / orale (non-étudiant)
30 min presentation + 5 min questions
Olivier Gagnon
(CFI)
12/06/2016, 14:05
Oral (Non-Student) / orale (non-étudiant)
20 min presentation + 5 min questions
Jonathan Bagger
(TRIUMF)
12/06/2016, 14:30
Oral (Non-Student) / orale (non-étudiant)
30 min presentation + 5 min questions
Nigel Smith
(SNOLab)
12/06/2016, 15:05
Oral (Non-Student) / orale (non-étudiant)
20 min presentation + 5 min questions
Dean Karlen
(University of Victoria (CA))
12/06/2016, 15:30
Oral (Non-Student) / orale (non-étudiant)
30 min presentation + 15 min questions
Michael Roney
(University of Victoria)
12/06/2016, 16:30
Tony Noble
(Queen's University)
13/06/2016, 08:00
Aksel Hallin
(University of Alberta), Prof.
Mark Boulay
(Carleton University)
13/06/2016, 08:15
Jeffery Martin
(The University of Winnipeg)
13/06/2016, 08:30
Michael Roney
(University of Victoria)
13/06/2016, 08:45
Fabrice Retiere
(TRIUMF)
13/06/2016, 09:00
Dugan O'Neil
(SFU Simon Fraser University (CA))
13/06/2016, 09:15
Hendrik Schatz
(National Superconducting Cyclotron Laboratory)
13/06/2016, 09:30
Herzberg Public, Plenary, and Medal Talks / Conférenciers des sessions Herzberg, plénières et médaillés (CAP-ACP)
Plenary Speaker / Conférencier plénier
Stellar explosions and colliding neutron stars are important sources of the chemical elements in nature. The properties of very unstable isotopes that are created for fleeting moments in these extreme astrophysical sites, imprint themselves onto the nature of the explosion and the characteristic element patterns that are created and ultimately shape the composition of the visible universe....
Dr
Amar Vutha
(University of Toronto)
13/06/2016, 10:30
Division of Atomic, Molecular and Optical Physics, Canada / Division de la physique atomique, moléculaire et photonique, Canada (DAMOPC-DPAMPC)
Invited Speaker / Conférencier invité
Gravitational wave (GW) astronomy has entered a new era with the direct detection of dekahertz-band GW signals by laser interferometers. As with the electromagnetic spectrum, observing gravitational waves in a range of different frequency bands will yield complementary insights into the astrophysics of gravitating objects. Gravitational waves at micro-hertz to milli-hertz frequencies can be...
Charles Varin
(University of Ottawa)
13/06/2016, 10:30
Plasma Physics / Physique des plasmas (DPP)
Invited Speaker / Conférencier invité
A key challenge in modelling laser-driven strongly-coupled plasmas is to properly resolve both microscopic and macroscopic phenomena. Atomic collision processes require angstrom spatial resolution, whereas the macroscopic length scale is determined by the wavelength of the incident light. For example, modelling the complete dynamics of a near-infrared laser pulse driving a solid-density plasma...
Thomas Brunner
(McGill University)
13/06/2016, 10:30
Particle Physics / Physique des particules (PPD)
Invited Speaker / Conférencier invité
The Enriched Xenon Observatory (EXO) is an experimental program designed to search for the neutrinoless double beta decay of $^{136}$Xe. Observation of this decay would prove that neutrinos are massive Majorana particles (i.e. they are their own anti-particles), and constitute physics beyond the Standard Model. The first phase experiment, called EXO-200, has re-started operation at the WIPP...
Dr
Arun Ramachandran
(University of Toronto)
13/06/2016, 10:30
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Invited Speaker / Conférencier invité
In this work, we consider the canonical problem of the drainage of a thin film of Bingham fluid squeezed out between two spherical, Newtonian drops pushed against each other under the action of an external force. The only prior research to have studied this problem is the analytical work due to Jeelani and coworkers (Can. J. Chem. Eng., vol. 65, pp. 384-390, 1987, and J. Phys. Chem., vol. 90,...
Dr
Stavros Dimitrakoudis
(University of Alberta)
13/06/2016, 10:30
Atmospheric and Space Physics / Physique atmosphérique et de l'espace (DASP-DPAE)
Oral (Non-Student) / orale (non-étudiant)
In a recent paper, Baker et al. (Nature, 2014) reported the observation of an “impenetrable barrier” to the inner edge of the ultra-relativistic electron radiation belt. These authors demonstrated that this barrier location was not coincident with the location of the plasmapause nor any other identifiable magnetospheric boundary; nor could it be explained by the scattering of...
Prof.
Eva Hemmer
(University of Ottawa)
13/06/2016, 10:30
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Invited Speaker / Conférencier invité
Lanthanide-based nanostructures are well known for their outstanding optical properties that are based on the electronic configuration of the trivalent lanthanide ions (Ln3+), which is characterized by an incompletely filled 4f shell, located inside the complete 5s2 and 5p6 shells. This results in a shielding of valence electrons, which are therefore only weakly affected by the environment....
Wayne Hocking
(University of Western Ontario)
13/06/2016, 10:45
Atmospheric and Space Physics / Physique atmosphérique et de l'espace (DASP-DPAE)
Oral (Non-Student) / orale (non-étudiant)
Due to the intermittency and spatial distribution of small layers of turbulence in the stratosphere, determination of large-scale diffusion coefficients is a non-trivial process. Previous models have assumed that all layers are perfectly mixed, but generally spatio-temporally disconnected. Our new model allows for partially mixed layers, especially for large and intense layers, which has...
Mohamed Amine Gharbi
(McGill University)
13/06/2016, 11:00
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Invited Speaker / Conférencier invité
The use of nanoparticles in the field of nanotechnology is one of the most promising approaches for novel technological applications through the development of reconfigurable ordered structures with rich properties. As well, the coupling of nanoparticles within liquid crystals is an emerging topic in the field of soft matter that offers new possibilities for designing reconfigurable...
Yang Lan
(TRIUMF/UBC)
13/06/2016, 11:00
Particle Physics / Physique des particules (PPD)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
The Enriched Xenon Observatory (EXO) is searching for the lepton-number violating double beta decay ($0\nu\beta\beta$) in $^{136}$Xe. If experimentally confirmed, $0\nu\beta\beta$ will require the neutrino to be its own anti-particle, i.e. Majorana particle, and shed light on the neutrino-mass hierarchy. The currently running EXO-200 experiment uses 200 kg of Xenon enriched to more than 80% in...
Prof.
Adina Luican-Mayer
(University of Ottawa)
13/06/2016, 11:00
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Invited Speaker / Conférencier invité
The ability to controllably layer atomically thin crystals into custom-made materials holds promise for realizing physical systems with distinct properties, previously inaccessible. The experimental results described in this talk seek to uncover the unique nature of the charge carriers in such few-atoms-thick materials as well as effects that interlayer coupling and disorder have on their...
Oleg Martynenko
(York University)
13/06/2016, 11:00
Atmospheric and Space Physics / Physique atmosphérique et de l'espace (DASP-DPAE)
Oral (Non-Student) / orale (non-étudiant)
Current status of the Canadian Ionosphere and Atmosphere Model (C-IAM) project is described. The C-IAM has been composed from two pre-existing first principles models: the extended Canadian Middle Atmosphere (CMAM) and the ionospheric part of the Upper Atmosphere Model (UAM). The model domain extends from the surface to the inner magnetosphere and two-way coupling between the neutral...
Ravi Bhardwaj
(University of Ottawa)
13/06/2016, 11:00
Plasma Physics / Physique des plasmas (DPP)
Invited Speaker / Conférencier invité
Transient free electron plasma is created during the leading edge of an intense ultrafast laser pulse irradiation of a material. Subsequent interaction of this plasma with the rest of the incident light is often ignored in laser processing of materials. We will show that light-plasma interaction plays an important role resulting in polarization dependent features both on the surface and inside...
Adriana Predoi-Cross
(Department of Physics and Astronomy, University of Lethbridge, Lethbridge, AB, T1K 6R4 Canada)
13/06/2016, 11:00
Division of Atomic, Molecular and Optical Physics, Canada / Division de la physique atomique, moléculaire et photonique, Canada (DAMOPC-DPAMPC)
Oral (Non-Student) / orale (non-étudiant)
We will discuss recent spectroscopic results for He-broadened transitions of carbon monoxide in the fundamental band, performed over a range of temperatures from 80 to 296 K. Experimentally, the spectral line parameters and their temperature dependencies were retrieved using a multispectrum analysis software and different line shape models (Voigt, speed dependent Voigt, Rautian, Rautian with...
Paul Prikryl
(Geomagnetic Laboratory, Natural Resources Canada, Ottawa, ON; Physics Department, University of New Brunswick, Fredericton, NB, Canada)
13/06/2016, 11:15
Atmospheric and Space Physics / Physique atmosphérique et de l'espace (DASP-DPAE)
Oral (Non-Student) / orale (non-étudiant)
Databases of extratropical-cyclone tracks obtained from two meteorological reanalysis datasets are used in superposed epoch analysis of time series of solar wind plasma parameters and green coronal emission line intensity. The time series are keyed to times of maximum growth of explosively developing extratropical cyclones during northern and southern winters. The new statistical evidence...
Prof.
Adriana Predoi-Cross
(Department of Physics and Astronomy, University of Lethbridge, Lethbridge, AB, T1K 6R4 Canada)
13/06/2016, 11:15
Division of Atomic, Molecular and Optical Physics, Canada / Division de la physique atomique, moléculaire et photonique, Canada (DAMOPC-DPAMPC)
Oral (Non-Student) / orale (non-étudiant)
We have re-analyzed room-temperature spectra of first overtone band of CO and CO broadened by hydrogen. We have employed the Voigt, speed depended Voigt, Rautian, and Rautian with speed dependence line shape models and a multispectrum fit software [1].
The line mixing coefficients have been calculated using scaling laws. The CO line widths in CO-Hydrogen and CO-CO collisions were calculated...
Dr
Christine Kraus
(Laurentian University)
13/06/2016, 11:15
Particle Physics / Physique des particules (PPD)
Invited Speaker / Conférencier invité
The SNO+ experiment is located at SNOLAB and is a multi-purpose scintillator neutrino detector. Currently the detector is being filled with water and prepared for commissioning. The first phase of the experiment will be the search for neutrinoless double beta decay with a 130Te loaded scintillator. Other physics goals include: lower energy solar neutrinos, reactor- and geo-antineutrinos as...
Ms
Himasha Wijesekara
(University of Western Ontario)
13/06/2016, 11:30
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
Kidney stone disease is a urological disorder that affects 10% of the human population, resulting in considerable pain and potential renal failure. It is known that certain macromolecules, such as osteopontin (OPN), can limit the formation of calcium oxalate monohydrate (COM) crystals, the major constituent of kidney stones. An explanation for this effect is provided by the Cabrera-Vermilyea...
patrick perron
(RMCC)
13/06/2016, 11:30
Atmospheric and Space Physics / Physique atmosphérique et de l'espace (DASP-DPAE)
Oral (Non-Student) / orale (non-étudiant)
The Farley-Buneman (FB) instability mechanism provides an excellent explanation for the presence of large amplitude plasma waves in the cm to few m wavelength range in the high latitude E region whenever the ambient electric field exceeds 20 mV/m. Observations suggest that the instabilities are observed at their threshold speed when they reach their largest amplitudes. This can be explained in...
Mr
Jacob Manalo
(University of Windsor)
13/06/2016, 11:30
Division of Atomic, Molecular and Optical Physics, Canada / Division de la physique atomique, moléculaire et photonique, Canada (DAMOPC-DPAMPC)
Oral (Student, Not in Competition) / Orale (Étudiant(e), pas dans la compétition)
This paper is part of a joint theoretical/experimental project to test QED by measuring the tune-out wavelength of helium near the 413 nm line where the frequency-dependent polarizability vanishes [1]. As a first strep, we calculate a high-precision value for the static polarizability defined in the nonrelativistic limit as the second-order perturbation energy due to the perturbation...
Cameron Hopkins
(The University of Western Ontario)
13/06/2016, 11:30
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
We are investigating the use of a vibrating wire device to measure the viscoelastic moduli of non-Newtonian fluids. Our device consists of a tungsten wire under tension and immersed in a fluid. When a magnetic field is applied and an alternating current is passed through the wire, it vibrates at the driving frequency. The resonance frequency of the wire can be tuned by varying its length and the...
Ms
Suhad Sbeih
(Memorial University of Newfoundland)
13/06/2016, 11:45
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
Microgel colloids exhibit a polymer collapse transition resulting in a large reduction in colloid size at high temperatures or pressures. They have potential for drug delivery and chemical separation applications that involve uptake and release of small or biological molecules. Our goal is to obtain a microscopic understanding of the structure and dynamics of the microgels by examining the...
Dr
Li-Hong Xu
(Physics Dept., University of NB)
13/06/2016, 11:45
Division of Atomic, Molecular and Optical Physics, Canada / Division de la physique atomique, moléculaire et photonique, Canada (DAMOPC-DPAMPC)
Oral (Non-Student) / orale (non-étudiant)
The infrared Fourier transform spectrum of the asymmetric C-H stretching bands of CH$_{3}$SH has been recorded in the 2950-3100 cm$^{-1}$ region using synchrotron radiation at the FIR beamline of the Canadian Light Source in Saskatoon. Assignment of numerous torsion-rotation sub-bands for the asymmetric stretches has revealed a surprising pseudo-symmetric behavior, in which each band is seen...
Dr
Stavros Dimitrakoudis
(University of Alberta)
13/06/2016, 11:45
Atmospheric and Space Physics / Physique atmosphérique et de l'espace (DASP-DPAE)
Oral (Non-Student) / orale (non-étudiant)
With the explosive release of energy within a substorm, stored magnetic energy is quickly converted to plasma kinetic energy, resulting in dramatic changes in the large-scale magnetic topology of the Earth’s night-side magnetic field and in increases in the flux of energetic particles in near-Earth space, and generates an apparently repeatable time series of events in the dynamic aurora...
Kristin Poduska
(Memorial University of Newfoundland)
13/06/2016, 11:45
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Oral (Non-Student) / orale (non-étudiant)
Physical separation of different polymorphs is a serious experimental challenge, but success would help efforts in applications as diverse as drug discovery, environmental remediation, and cultural conservation. To meet this challenge, we demonstrate a proof-of-principle method to separate polymorphic materials by tuning their electrophoretic mobility differences. Our test case involved two...
Janet Rumleskie
(Laurentian University)
13/06/2016, 11:45
Particle Physics / Physique des particules (PPD)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
SNO+ is a large, underground neutrino detector, redesigned from the SNO detector. Three separate phases of SNO+ will provide a diverse study of neutrinos, with one phase specifically dedicated to the search for neutrinoless double beta decay in Te-130. At a depth of 2 km underground, SNO+ is shielded from many cosmogenics, yet the decay of U-238 within the surrounding rock leads to high (∼3.54...
Prof.
Mohamed Siaj
(UQAM)
13/06/2016, 13:00
Invited Speaker / Conférencier invité
Two-dimensional (2D) materials have attracted much attention due to their unique properties. Controllable synthesis of 2D materials with high quality and high efficiency is essential for their large-scale applications. In parallel to the chemical synthesis route, chemical vapor deposition (CVD) has been one of the most important techniques for the synthesis of 2D materials. The present talk...
Dr
Paul McGrath
13/06/2016, 13:00
Theoretical Physics / Physique théorique (DTP-DPT)
Invited Speaker / Conférencier invité
In this talk, I will give a brief introduction to rigid quasilocal frames (RQF) which have been proposed as a geometrically natural way to define spatially extended reference frames in general relativity. In particular, I will explore their usefulness as a tool for constructing completely general conservation laws that do not rely on the presence of spacetime symmetries and include both...
Prof.
Qing-Bin Lu
(University of Waterloo)
13/06/2016, 13:00
Physics in Medicine and Biology / Physique en médecine et en biologie (DPMB-DPMB)
Invited Speaker / Conférencier invité
The conquest of cancer continues to pose great challenges to medical science. There is a compelling need for innovative cancer research integrating biomedical sciences with physical sciences in order to ultimately conquer cancer. Femtomedicine (FMD), which integrates femtosecond time-resolved laser spectroscopy with biomedical sciences, was recently coined to advance fundamental understanding...
Mr
Joochun (Jason) Park
(University of British Columbia/TRIUMF)
13/06/2016, 13:00
Nuclear Physics / Physique nucléaire (DNP-DPN)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
$^{100}$Sn is the heaviest self-conjugate doubly magic nuclei with $N = Z = 50$. Research on this nucleus has been aggressively pursued, for its properties yield valuable information on many topics of nuclear physics: the robustness of the magic number 50 far from stability, the effect of proton-neutron interaction, and the location of the proton dripline and the end of the rapid...
Shaun Lovejoy
(McGill University)
13/06/2016, 13:00
Atmospheric and Space Physics / Physique atmosphérique et de l'espace (DASP-DPAE)
Invited Speaker / Conférencier invité
Although the butterfly effect – sensitive dependence on initial conditions - fundamental limits deterministic weather forecasting to horizons of about 10 days, it has not prevented deterministic Global Circulation Models (GCM’s) from being used way past this limit for monthly, seasonal and interannual forecasts. When such models are used for these longer term “macroweather” forecasts, they...
Prof.
Ksenia Dolgaleva
(University of Ottawa)
13/06/2016, 13:00
Division of Atomic, Molecular and Optical Physics, Canada / Division de la physique atomique, moléculaire et photonique, Canada (DAMOPC-DPAMPC)
Invited Speaker / Conférencier invité
Recent advances in nanofabrication made it possible to produce arrays of artificial structures (metamolecules) with good optical quality. This, in turn, enabled the observation of many unusual phenomena, such as invisibility cloaking, negative refraction, generation of beams with orbital angular momentum and other modifications to the polarization state of the incoming light. Of special...
Dag Gillberg
(Carleton University)
13/06/2016, 13:00
Particle Physics / Physique des particules (PPD)
Invited Speaker / Conférencier invité
The ATLAS detector at CERN in Geneva, Switzerland, detects the particles produced in proton-proton collisions created by the Large Hadron Collider. Following the very successful Run I data taking period during 2009-2012 where the proton-proton collision energy was at maximum 8 TeV, we have now started the Run II data taking period with the significantly higher collision energy of 13 TeV. This...
Steffen Cruz
13/06/2016, 13:15
Nuclear Physics / Physique nucléaire (DNP-DPN)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
Nuclei near the so called magic numbers of protons and neutrons are observed to have a spherical shape in their low lying states. Nuclei between magic numbers, where the binding energy tends to be less, are often observed to show deformation in low lying states. These deformations have either a prolate or oblate nature.
States within a nucleus that have different shapes that are close in...
Mr
Harris Bidaman
(University of Guelph)
13/06/2016, 13:30
Nuclear Physics / Physique nucléaire (DNP-DPN)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
Located at the stability line, the low lying spin states of the 154Gd nucleus were investigated at the University of Jyväskylä accelerator laboratory in Finland using the 154Gd(p,p'γ) reaction. A proton beam of 12 MeV was used to excite the 154Gd target, with the gamma-rays from the reaction detected with the JUROGAM II array, while the LISA charged-particle spectrometer was used for...
Jarno Nicolaas van der Kolk
(University of Ottawa)
13/06/2016, 13:30
Division of Atomic, Molecular and Optical Physics, Canada / Division de la physique atomique, moléculaire et photonique, Canada (DAMOPC-DPAMPC)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
Nonlinear optical microscopy techniques, such as stimulated Raman scattering (SRS) and coherent anti-Stokes Raman scattering (CARS), allow for label-free chemically-sensitive non-destructive video-rate imaging of biological processes[1]. SRS is of particular interest due to its improved image contrast, high spectral sensitivity and low acquisition times.
Correctly interpreting images produced...
Samuel de Jong
(University of Victoria)
13/06/2016, 13:30
Particle Physics / Physique des particules (PPD)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
Thermal neutron detectors have been installed into BEAST II, the commissioning detector of the SuperKEKb accelerator. These detectors use helium-3 to detect neutrons via the capture process $^{3}$He$ + n \rightarrow ^{3}$H$+p+720keV$ and are only sensitive to thermal neutrons, and are therefore an excellent means of monitoring the thermal neutron flux in the BEAST. Commissioning began in...
tigran galstian
(Laval University)
13/06/2016, 13:30
Physics in Medicine and Biology / Physique en médecine et en biologie (DPMB-DPMB)
Oral (Non-Student) / orale (non-étudiant)
Material diffusion processes are fundamentally driven by local microscopic interactions. Many important applications of diffusion, including drug delivery, are based on this concept. However, some orientational microscopic interactions can generate a collective macroscopic organization. Thus, macroscopic boundary conditions may affect the microscopic diffusion if orientational interactions are...
Parvin Navaeipour
(Queen's University)
13/06/2016, 13:30
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Oral (Student, Not in Competition) / Orale (Étudiant(e), pas dans la compétition)
Graphene, as a zero-bandgap two-dimensional semiconductor with a linear electron band dispersion
near the Dirac points has potential to exhibit very interesting nonlinear optical properties [1]. In particular, third harmonic generation of terahertz (THz) radiation should occur both due to the nonlinear relationship between the crystal momentum and the current density, and due to the...
Alex Cushley
13/06/2016, 13:30
Atmospheric and Space Physics / Physique atmosphérique et de l'espace (DASP-DPAE)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
A plane polarized wave that propagates through a plasma, parallel to a magnetic field, suffers a gradual rotation of its plane of polarization called Faraday rotation. Likewise, radio beacon signals that traverse the ionospheric plasma encounter a parallel component of Earths geomagnetic field and the anisotropy of the medium. Many authors use the average value of the parallel magnetic field...
Karl-Peter Marzlin
(St. Francis Xavier University)
13/06/2016, 13:30
Theoretical Physics / Physique théorique (DTP-DPT)
Oral (Non-Student) / orale (non-étudiant)
We generalize the Moyal equation, which describes the dynamics of quantum observables in phase space, to quantum systems coupled to a reservoir. It is shown that phase space observables become functionals of fluctuating noise forces introduced by the coupling to the reservoir. For Markovian reservoirs, the Moyal equation turns into a functional differential equation in which the reservoir's...
Christina Burbadge
(University of Guelph)
13/06/2016, 13:45
Nuclear Physics / Physique nucléaire (DNP-DPN)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
Many approaches have been implemented in nuclear structure physics to interpret the nature of excited states in well-deformed nuclei, such as vibrational excitations in $\beta$ phonons and $\gamma$ phonons, as well as pairing excitations. However, due to a paucity of data about excited states in rare earth nuclei, in many cases even the first excited state, 0$^+_2$, is not known.
Direct...
Alexandre Beaulieu
(University of Victoria)
13/06/2016, 13:45
Particle Physics / Physique des particules (PPD)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
The SuperKEKB electron-positron collider, aiming to deliver an unprecedented peak instantaneous luminosity to the Belle-II experiment, was operated for the first time at the beginning of this year. The expected luminosity --- 40 times that delivered to the Belle experiment --- demands careful prediction and characterization of the machine-induced background radiation and its effect on the...
Dr
Marek Korkusinski
(National Research Council)
13/06/2016, 13:45
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Oral (Non-Student) / orale (non-étudiant)
Tungsten disulfide represents a class of 2D materials, transition metal dichalcogenides (TMDC), which exist as layers of atomic thickness with atoms organized in a honeycomb lattice. Similarly to graphene, in TMDCs the minimum of the conduction band and the maximum of the valence band are found at the K and K’ points in the Brillouin zone. Unlike graphene, these systems exhibit (i) a large...
Rebecca Saaltink
(University of Ottawa)
13/06/2016, 13:45
Division of Atomic, Molecular and Optical Physics, Canada / Division de la physique atomique, moléculaire et photonique, Canada (DAMOPC-DPAMPC)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
Radially and azimuthally polarized light beams have garnered increased interest for their properties and uses in fundamental and applied optics. Radial polarizations are parallel to the central axis of the beam (at all points pointing toward the beam center); azimuthal polarizations are orthogonal to this, running perpendicular to the central axis of the beam. Photon pairs with these...
David Themens
(University of New Brunswick)
13/06/2016, 13:45
Atmospheric and Space Physics / Physique atmosphérique et de l'espace (DASP-DPAE)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
It is well known that the IRI suffers reduced accuracy in its representation of monthly median ionospheric variability at high latitudes (Themens et al. 2014, Themens et al. 2016). These inaccuracies are believed to stem from a historical lack of data from these regions. Now, roughly thirty and forty years after the development of the original URSI and CCIR foF2 maps, respectively, there...
Adree Khondker
(McMaster University)
13/06/2016, 13:45
Physics in Medicine and Biology / Physique en médecine et en biologie (DPMB-DPMB)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
Cortisone is an injected anti-inflammatory drug that is used to treat inflammation. Cortisone’s mechanism of action involves binding to an intracellular receptor which transduces a biochemical cascade to reduce the production of inflammatory prostaglandins. However, cortisone is known to confer side effects, such as pain, known as a “steroid flare” for which the mechanism is unknown. Using...
Mr
Matthew Runyon
(Department of Physics and Max Planck Centre for Extreme and Quantum Photonics, University of Ottawa, Canada)
13/06/2016, 14:00
Division of Atomic, Molecular and Optical Physics, Canada / Division de la physique atomique, moléculaire et photonique, Canada (DAMOPC-DPAMPC)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
Light fields with spatially varying polarization have a wide range of potential uses in the areas of telecommunication, imaging, lithography, and quantum information. A spatial light modulator (SLM) is a two dimensional array of liquid crystal cells that can control phase, polarization, and intensity of light point by point across a beam’s spatial profile. We have developed methods to...
Anthony McCaffrey
(University of New Brunswick)
13/06/2016, 14:00
Atmospheric and Space Physics / Physique atmosphérique et de l'espace (DASP-DPAE)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
The Canadian High Arctic Ionospheric Network (CHAIN) [1] includes Global Positioning System (GPS) receivers capable of sampling specific observables at very high rates, up to 100 Hz. With these high rate observables, 100 Hz Total Electron Content (TEC), and Rate of TEC index (ROTI), can be calculated. This study outlines the methods and limitations of calculating both relative and absolute 100...
Mr
Joseph Hickey
(University of Calgary)
13/06/2016, 14:00
Theoretical Physics / Physique théorique (DTP-DPT)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
Citation networks can be used to make powerful analyses about human intellectual activity in diverse fields. However, universal rules governing their structure and dynamics have not yet been discovered. To address this, my research probes the influence of social and institutional hierarchy on the structure and dynamics of citation networks. Hierarchy is a fundamental feature of all human...
David Sean
(University of Ottawa)
13/06/2016, 14:00
Physics in Medicine and Biology / Physique en médecine et en biologie (DPMB-DPMB)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
Driven DNA translocation through a nanoscopic pore has been the focus of many studies in recent years both due to its importance in biological processes and as a promising new technology to probe single DNA molecules. However, the simple process of driving monodisperse DNA chains through a pore often leads to surprisingly wide distributions of translocation times. In the regime where the...
Mr
Sina Kazemian
(PhD student)
13/06/2016, 14:00
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
Pulsed thermoreflectance (PTR) and photothermal deflection spectroscopy (PDS) are powerful and contactless methods to simultaneously determine the thermal diffusivity and thermal conductivity of thin solid films. In PTR, the heat generated in an optically absorbing thin film by a pulsed and monochromatic light beam creates a change of reflectance in the material, which is detected via a...
Hubert Trepanier
(Universite de Montreal (CA))
13/06/2016, 14:00
Particle Physics / Physique des particules (PPD)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
Supersymmetry (SUSY) is one of the most popular and the most studied theory proposed as an extension to the Standard Model (SM). If R-parity is conserved the lightest supersymmetric particle (LSP) is stable and in many models LSP can be a good candidate for dark matter. I will present the method and the results about the search of strongly produced supersymmetric particles using a specific...
Mr
Joseph Turko
(University of Guelph)
13/06/2016, 14:00
Nuclear Physics / Physique nucléaire (DNP-DPN)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
The DEuterated SCintillator Array for Neutron Tagging (DESCANT) is a newly developed high-efficiency neutron detection array composed of 70 hexagonal deuterated scintillators. Due to the anisotropic nature of elastic neutron-deuteron (n,d) scattering, the pulse-height spectra of a deuterated scintillator contains a forward-peaked structure that can be used to determine the energy of the...
Racheal Athieno
(University of New Brunswick)
13/06/2016, 14:15
Atmospheric and Space Physics / Physique atmosphérique et de l'espace (DASP-DPAE)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
The work on neural networks (NN) by several authors has shown promising results in modeling nonlinear and complex processes in the near Earth space. For instance, NN-based models have been developed to forecast solar and magnetic activity indices, and different ionospheric parameters. However, the developed models have been faced with the challenge of data paucity in the polar region, a major...
Mr
Nima Sherafati
(Carleton University)
13/06/2016, 14:15
Particle Physics / Physique des particules (PPD)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
The most common feature produced in the proton-proton collisions of the Large Hadron Collider (LHC) are collimated sprays of particles referred to as jets, which are typically produced from quarks or gluons. The large centre-of-mass energy of the LHC collisions also enables the production of heavy particles with a significant Lorentz-boost. The decay products of such a boosted heavy particle...
Sebastian Himbert
(Mcmaster University)
13/06/2016, 14:15
Physics in Medicine and Biology / Physique en médecine et en biologie (DPMB-DPMB)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
How nucleic acids first assembled and then incorporated into the earliest forms of cellular life 4 billion years ago remains a fundamental question of biology. It is postulated that prior to today's DNA, RNA, and protein-dominated world, RNA was used for genetic storage and as a catalyst for reactions, such as polymerization. RNA is a polymer chain of nucleotides linked to a ribose-phosphate...
Dr
Dong Hyuk Ko
(Joint Attosecond Science Laboratory, University of Ottawa and National Research Council of Canada)
13/06/2016, 14:15
Division of Atomic, Molecular and Optical Physics, Canada / Division de la physique atomique, moléculaire et photonique, Canada (DAMOPC-DPAMPC)
Oral (Non-Student) / orale (non-étudiant)
We demonstrated simultaneous all-optical, single-shot holographic measurement of attosecond high harmonic pulses and a femtosecond laser pulse. To achieve this, we introduce a weak laser beam into the harmonic generation medium together with the strong driving laser field. The weak laser field perturbs the trajectories of ionized electrons that are responsible for high harmonic generation and...
Prof.
Roger Melko
(University of Waterloo)
13/06/2016, 14:45
Herzberg Public, Plenary, and Medal Talks / Conférenciers des sessions Herzberg, plénières et médaillés (CAP-ACP)
Invited Speaker / Conférencier invité
Monte Carlo simulations have been ubiquitous in efforts to simulate and characterize properties of matter and materials since the advent of computers themselves. In the last decade, condensed matter physicists have turned simulation technology to the study of a new set of phenomena, loosely termed as "emergent", with correlations not manifested in traditional correlation functions. Motivated...
Naomi Matsuura
(University of Toronto)
13/06/2016, 15:45
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Invited Speaker / Conférencier invité
Imaging is a fundamental tool in the practice of medicine. The interaction of medical imaging radiation with new materials has long been exploited to develop new and improved imaging systems and techniques. In parallel with these advances, there is increasing interest in developing new contrast agents for the diagnosis of disease. Exogenous contrast agents are non-native sources of contrast...
Prof.
Sidhartha Goyal
(Univ of Toronto)
13/06/2016, 15:45
Physics in Medicine and Biology / Physique en médecine et en biologie (DPMB-DPMB)
Invited Speaker / Conférencier invité
Much of complex biology results from interactions among a large number of individually simpler elements. Blood regeneration is no different. About 100 billion new blood cells are made everyday from a much smaller yet a large population of diverse stem cell population. I will present a phenomenological model of blood regeneration, which provides a framework to understand large variation (~3...
Manu Paranjape
(Université de Montréal)
13/06/2016, 15:45
Theoretical Physics / Physique théorique (DTP-DPT)
Invited Speaker / Conférencier invité
We review our work concerning the decay of the false vacuum by quantum tunnelling transitions. When the false vacuum manifold is non-trivial, it can lock in topological defects. We have considered the possibility that these are magnetic monopoles, cosmic strings, domain walls and most recently, Skyrmions. In all of these cases, the topological defect must realize the true vacuum inside its...
Olga Caballero
13/06/2016, 15:45
Nuclear Physics / Physique nucléaire (DNP-DPN)
Invited Speaker / Conférencier invité
Neutron-star binary mergers are interesting for several reasons: they are proposed as the progenitors of short gamma-ray bursts, they have been speculated to be a site for the synthesis of heavy elements, and they emit gravitational waves possibly detectable at terrestrial facilities. Our current understanding of the merger evolution and the production of new elements is linked to details of...
Tony Noble
(Queen's University)
13/06/2016, 15:45
Particle Physics / Physique des particules (PPD)
Invited Speaker / Conférencier invité
The PICO experimental program at SNOLAB uses superheated bubble chambers to search for evidence of dark matter primarily through spin-dependent interactions on 19F in C3F8. Recoiling nuclei from WIMP-nucleon interactions in the active fluid deposit enough energy locally to initiate a phase transition in the fluid. The bubbles which form are observed with stereo...
Dr
Frank Vernon
(Scripps Institute of Oceanography, UCSD, La Jolla, California)
13/06/2016, 15:45
Atmospheric and Space Physics / Physique atmosphérique et de l'espace (DASP-DPAE)
Invited Speaker / Conférencier invité
It was established over a decade ago that the normal modes of the Earth are continuously excited at times without large earthquakes, but the sources of the ‘seismic hum’ have remained unresolved. In addition to the normal modes of the Earth, we show spectral lines in seismic data with frequencies which correspond closely to normal modes of the Sun. Moreover, the widths of the low-frequency...
Prof.
Alan Madej
(NRC/ MSS, York University, University of Ottawa)
13/06/2016, 15:45
Division of Atomic, Molecular and Optical Physics, Canada / Division de la physique atomique, moléculaire et photonique, Canada (DAMOPC-DPAMPC)
Invited Speaker / Conférencier invité
There is now a revolution underway in ultra-accurate measurements of frequency and time using optical atomic transitions probed with highly coherent laser light. By suspending a single atomic ion using an electro-dynamic trapping field and reducing its velocity by laser cooling, we can approach, as close as possible, the ideal situation of an isolated and unperturbed quantum system. Laser...
Dr
Daniel Cluff
(University of Exeter)
13/06/2016, 16:15
Atmospheric and Space Physics / Physique atmosphérique et de l'espace (DASP-DPAE)
Oral (Non-Student) / orale (non-étudiant)
The recent climate change discussions between Canada and the United States of America and other international agreements target methane a potent GHG. The U.S. Environmental Protection Agency will begin developing regulations for methane emissions from existing oil and gas sources while Environment and Climate Change Canada will publish proposed initial phase regulations by early 2017. Although...
Apichart Linhananta
(Lakehead University)
13/06/2016, 16:15
Physics in Medicine and Biology / Physique en médecine et en biologie (DPMB-DPMB)
Oral (Non-Student) / orale (non-étudiant)
Research has established a strong link between symptoms of Alzheimer's disease (AD) to 36-43 amino acid residues peptides, called the amyloid beta (A$\beta$) peptides. Patients with AD are usually diagnosed with aggregates of A$\beta$ peptides, also called plaques, which can be as large as several $\mu$m. The structures of the plaques display a wide variety of polymorphisms that depends on the...
Prof.
Jean-Francois Fortin
(Laval University)
13/06/2016, 16:15
Theoretical Physics / Physique théorique (DTP-DPT)
Oral (Non-Student) / orale (non-étudiant)
We show how to obtain all conformal blocks from embedding space with the help of the operator product expansion. The minimal conformal block originates from scalar exchange in a four-point correlation functions of four scalars. All remaining conformal blocks are simple derivatives of the minimal conformal block. With the help of the orthogonality properties of the conformal blocks, the...
Artemis Spyrou
(Michigan State University)
13/06/2016, 16:15
Nuclear Physics / Physique nucléaire (DNP-DPN)
Invited Speaker / Conférencier invité
The astrophysical r-process is responsible for the synthesis of about half of the isotopes of the heavy elements. Despite its well-known role in nucleosythesis, the astrophysical site where it takes place has not been unambiguously determined. Efforts for the better understanding of this important process span across many fields, from astronomical observations of metal-poor stars, and modeling...
Mr
Andrew Macdonald
(University of British Columbia)
13/06/2016, 16:15
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
High-resolution magnetometry is an essential tool used across the sciences. The recent development of electron spin resonance scanning tunnelling microscopy (ESR-STM) opens the door on a new type of magnetometry, one with the ability to coherently manipulate quantum spins with neV energy resolution and sub-nanometre spatial resolution [1]. In this talk I will show recent results obtained from...
Prof.
Adriana Predoi-Cross
(Department of Physics and Astronomy, University of Lethbridge, Lethbridge, AB, T1K 6R4 Canada)
13/06/2016, 16:15
Division of Atomic, Molecular and Optical Physics, Canada / Division de la physique atomique, moléculaire et photonique, Canada (DAMOPC-DPAMPC)
Oral (Non-Student) / orale (non-étudiant)
We present a study of the infrared emission spectra of Deuterium Cyanide (DCN) in the 450 to 850 wavenumbers range at 1370 K. Hydrogen Cyanide (HCN) was present as an impurity in the sample. The spectra were recorded using a Fourier transform spectrometer Bruker IFS 120 HR at the Justus-Liebig Universität, Giessen, Germany. A spectrum analysis software called SyMath developed by one of the...
Mr
Simon Norman-Hobbs
(TRIUMF)
13/06/2016, 16:15
Particle Physics / Physique des particules (PPD)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
DEAP-3600 is particle detector looking for weakly interacting massive particles (WIMPs) as a source of dark matter. Incident particles colliding with the 3600 kg argon target in DEAP will produce excited dimers which decay releasing scintillation light. The proportion of singlet and triplet excited states of the dimers produced depends on the interacting particle type, with the result that...
Thomas Beniac
(Brock University)
13/06/2016, 16:30
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Oral (Student, Not in Competition) / Orale (Étudiant(e), pas dans la compétition)
Authors: T. Beniac, C. Vendromin, N. Dwyer, N. Majtenyi, M. Reedyk.
Currently, optical cutoff filters in the infrared range are primarily
based on
scattering or multilayers. These types of filters, however, come with
disadvantages.
In multilayer filters the varying material properties between the
different layers causes
mechanical instability at extreme temperatures. Scattering-type...
Benjamin Broerman
(Queen's University)
13/06/2016, 16:30
Particle Physics / Physique des particules (PPD)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
DEAP-3600 is a single phase liquid argon dark matter search experiment. The target consists of 3600 kg of liquid argon, contained in a spherical acrylic vessel and viewed by a surrounding array of photomultiplier tubes (PMTs). Particle interactions in liquid argon produce scintillation light in the vacuum ultraviolet (VUV) spectrum, which is efficiently absorbed by the surrounding acrylic. To...
Stefan Wallin
(Memorial University of Newfoundland)
13/06/2016, 16:30
Physics in Medicine and Biology / Physique en médecine et en biologie (DPMB-DPMB)
Invited Speaker / Conférencier invité
The traditional view holds that proteins fold into essentially unique and stable 3-dimensional structures which, in turn, determine their biological functions. Evidence is mounting, however, for a pervasive role of large-scale conformational changes for how proteins carry out their functions. Examples include the ability of some proteins to switch between entirely different folded structures,...
Alexander Smith
(University of Waterloo)
13/06/2016, 16:30
Theoretical Physics / Physique théorique (DTP-DPT)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
Progress in physics, from Aristotelian physics, to Galilean and Newtonian physics, and then to both special and general relativity, can be viewed as a continual refinement of the notion of a reference frame. The next natural step in this progression is the idea of a quantum reference frame. In this talk, I will introduce the basic tools that have been developed to study quantum reference...
Mr
Martin Heusen
(University of Manitoba)
13/06/2016, 16:30
Atmospheric and Space Physics / Physique atmosphérique et de l'espace (DASP-DPAE)
Oral (Student, Not in Competition) / Orale (Étudiant(e), pas dans la compétition)
We explore the influence of magnetic turbulence on the transport of energetic particles, mainly cosmic rays, by using test-particle simulations. We compute parallel and perpendicular diffusion coefficients for two-component turbulence, isotropic turbulence, a model based on Goldreich-Sridhar scaling, noisy reduced magneto-hydrodynamic turbulence, and a noisy slab model. We have shown that for...
Prof.
Adriana Predoi-Cross
(Department of Physics and Astronomy, University of Lethbridge, Lethbridge, AB, T1K 6R4 Canada)
13/06/2016, 16:30
Division of Atomic, Molecular and Optical Physics, Canada / Division de la physique atomique, moléculaire et photonique, Canada (DAMOPC-DPAMPC)
Oral (Non-Student) / orale (non-étudiant)
We have re-analyzed the A-band spectra of oxygen and oxygen broadened by nitrogen previously published by our research group [1,2]. We have used a multispectrum fit analysis [3] and different line shape models. The line shape narrowing (Dicke) effects were incorporate using theoretical calculations for the self diffusion coefficients and Maxwell–Stefan diffusion coefficients discussed. We have...
1152.
**WITHDRAWN** Phase-imaging mass measurements with the Canadian Penning trap mass spectrometer
Rodney Orford
(McGill University)
13/06/2016, 16:45
Nuclear Physics / Physique nucléaire (DNP-DPN)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
Roughly half of the elements heavier than iron are thought to be produced through the astrophysical rapid-neutron capture process of nucleosynthesis. Despite its large influence in explaining the observed abundance of heavy elements, much of the *r* process is still poorly understood. A more thorough library of nuclear data, particularly masses, of neutron-rich nuclei is needed to improve the...
Dr
Ronald M. Lees
(Physics Dept., University of New Brunswick)
13/06/2016, 16:45
Division of Atomic, Molecular and Optical Physics, Canada / Division de la physique atomique, moléculaire et photonique, Canada (DAMOPC-DPAMPC)
Oral (Non-Student) / orale (non-étudiant)
The Fourier transform infrared spectra of the lower infrared vibrational bands of CH$_{3}$SH have been investigated from 650 to 1200 cm$^{-1}$ at 0.001 cm$^{-1}$ resolution employing synchrotron radiation at the Canadian Light Source in Saskatoon. The relative band strengths and structures are remarkably different from those for the analogous CH$_{3}$OH relative, with the CSH bend being very...
Prof.
Rafik Naccache
(Concordia University)
13/06/2016, 16:45
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Invited Speaker / Conférencier invité
In recent years, nanomaterials have garnered significant attention in the effort to develop novel applications and technologies, or for the improvement of already existing ones. In particular, a strong emphasis has been placed on nanoparticle-based probes than can be used in imaging and therapeutics. Of particular interest are metal nanoparticles such as silver, platinum and gold, which...
Chanpreet Amole
(Queen's University)
13/06/2016, 16:45
Particle Physics / Physique des particules (PPD)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
New data are reported from a second run of the 2-liter PICO-2L $C_3F_8$ bubble chamber with a total exposure of 129 kg-days at a thermodynamic threshold energy of 3.3 keV. These data show that the measure taken to control particulate contamination in the superheated fluid resulted in the absence of the anomalous background events observed in the first run of this bubble chamber. One single...
Mr
Jamil Ahmed
(Quaid-i-Azam University, Islamabad)
13/06/2016, 16:45
Theoretical Physics / Physique théorique (DTP-DPT)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
In this work I would like to give semi-classical derivation of Hawking temperature from cylindricaly symmetric charged rotating black strings. I will use Hamilton Jacobi method and WKB approximation to get analytic expression for Hawking temperature of fermions tunneling from charged black strings.
Mr
Martin Heusen
(University of Manitoba)
13/06/2016, 16:45
Atmospheric and Space Physics / Physique atmosphérique et de l'espace (DASP-DPAE)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
We explore the transport of energetic particles in interplanetary space by using test-particle simulations. In previous work such simulations have been performed by using either magneto-static turbulence or undamped propagating plasma waves. In the current work we simulate for the first time particle transport in dynamical turbulence. To do so we employ three models, namely the damping model...
Roger Odell
(Carleton University)
13/06/2016, 17:00
Particle Physics / Physique des particules (PPD)
Oral (Student, Not in Competition) / Orale (Étudiant(e), pas dans la compétition)
The Time Projection Chamber (TPC) for the International Linear Collider (ILC) will need to measure about 200 track points with a spatial single-hit resolution close to 100 microns. A Micro Pattern Gas Detector (MPGD) readout TPC with a resistive layer can achieve the desired resolution. A new readout technique using the principle of charge dispersion with a resistive layer on a Micromegas has...
Martin Connors
(Athabasca University)
13/06/2016, 17:00
Atmospheric and Space Physics / Physique atmosphérique et de l'espace (DASP-DPAE)
Oral (Non-Student) / orale (non-étudiant)
The substorm at about 5 UT on February 26, 2008 (Angelopoulos et al., Science, 2008) has been taken as prototypical of reconnection in the Near-Earth Neutral Line model. Further examination by Pu et al. (JGR, 2010) showed that the event was preceded an hour earlier by one with very similar signatures. Traditional use of AE-related indices suggests that the first event was smaller in terms of...
Vincent Binette
(Université de Montréal)
13/06/2016, 17:00
Physics in Medicine and Biology / Physique en médecine et en biologie (DPMB-DPMB)
Oral (Student, Not in Competition) / Orale (Étudiant(e), pas dans la compétition)
The Huntingtin protein has drawn considerable attention as its aggregation into amyloid fibrils is related to the Huntington disease, a neurodegenerative disease characterized by motor and emotional dysfunctonalities and the loss of cognitive functions. Of its 3000 plus residues, attention has focused mostly on the first exon of Huntingtin, composed of a amphipatic region of 17 amino acids...
Yan Gobeil
(McGill University)
13/06/2016, 17:00
Theoretical Physics / Physique théorique (DTP-DPT)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
A conformal field theory is a quantum field theory whose symmetries are extended from the Lorentz group to the conformal group, thus putting more constraints on the theory than what we normally have in regular quantum field theory. In 2 dimensions, the conformal symmetries are infinite dimensional so it is easier to characterize the properties of 2d CFTs than it is in higher dimensions....
Nikita Bernier
(TRIUMF)
13/06/2016, 17:00
Nuclear Physics / Physique nucléaire (DNP-DPN)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
The neutron-rich region around A = 132 is of special interest for nuclear astrophysics and nuclear structure. From an astrophysics perspective, this region is connected with the second r-process abundance peak at A$\approx$130 and the waiting-point nuclei around N = 82. For nuclear structure studies, the neighbours of the doubly-magic $^{132}$Sn (Z = 50, N = 82) are an ideal test ground for...
Victoria Kaspi
(Department of Physics, McGill University)
13/06/2016, 19:30
Herzberg Public, Plenary, and Medal Talks / Conférenciers des sessions Herzberg, plénières et médaillés (CAP-ACP)
Plenary Speaker / Conférencier plénier
Although they are thousands of light years away, neutron stars can act as very precise cosmic beacons -- a celestial gift that sheds light on some of the most interesting problems in modern science. We will explore these strange objects, explain how astronomers are using them to study issues ranging from the origins of the Universe to the very nature of matter, and even listen to the cosmic...
Fabio Variola
(University of Ottawa)
14/06/2016, 08:30
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Invited Speaker / Conférencier invité
Metals currently used for prosthetic reconstructions (e.g. titanium) enjoy a relatively good success rate, but their performance drops significantly in patients with compromised health status, and post-surgical infections still remain an important challenge. In addition, there are still no such metals that are able to respond to any deterioration of their relationship with the host tissue. To...
Daria Ahrensmeier
(Simon Fraser University)
14/06/2016, 08:30
Physics Education / Enseignement de la physique (DPE-DEP)
Oral (Non-Student) / orale (non-étudiant)
In this talk, we’ll tell the story of how an initial idea for course redesign grew into something much bigger, incorporating ideas from Physics Education research and the Physics Education community, design of learning spaces, SOTL (scholarship of teaching and learning), building a community of practice etc. along the way – thus “Gesamtkunstwerk”. We will describe how funding for teaching lab...
Prof.
Jonathan Sharp
(University of Alberta)
14/06/2016, 08:30
Physics in Medicine and Biology / Physique en médecine et en biologie (DPMB-DPMB)
Invited Speaker / Conférencier invité
MRI is a highly effective, but expensive imaging modality. Lower strength magnetic field and lower cost variants of MRI are being developed for specific applications. We will focus on one approach, ‘Transmit Array Spatial Encoding’ (TRASE), which uses only a resonant radiofrequency (RF) field to produce Fourier spatial encoding equivalent to conventional MRI. The usual audio frequency switched...
Christopher Charles
(University of Ottawa)
14/06/2016, 08:30
Industrial and Applied Physics / Physique industrielle et appliquée (DIAP-DPIA)
Oral (Non-Student) / orale (non-étudiant)
$^{236}$U (half-life 2.34$\times10^7$ y) is a radioisotope of uranium of key importance for tracing the movement of nuclear waste through the environment. Accelerator mass spectrometry (AMS) is the most robust and capable method for measuring $^{236}$U, which has a natural abundance range between 10$^{-8}$ to 10$^{-12}$ or lower. Here we study $^{236}$U uptake in biota samples (plants,...
Prof.
Harald Pfeiffer
(CITA, University of Toronto)
14/06/2016, 08:30
Theoretical Physics / Physique théorique (DTP-DPT)
Invited Speaker / Conférencier invité
On September 14, 2015, the LIGO detectors observed gravitational waves from a merger of two black holes. This talk describes the LIGO instruments and the LIGO Scientific Collaboration. It presents details of the observed gravitational wave event and discusses implications to astrophysics and tests of general relativity.
Prof.
Tsun Sham
(Western University)
14/06/2016, 08:30
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Invited Speaker / Conférencier invité
Using a phosphor to “see” X-rays is as old as the discovery of X-rays and is practiced everyday worldwide. The advent of maturing third generation synchrotron light source technology has made it possible to conduct investigations of X-ray excited optical luminescence (XEOL)from solid in both energy and time domain in much greater details than ever before.
In parallel with this development...
Richard Hill
(TRIUMF, Perimeter Institute and University of Chicago)
14/06/2016, 08:30
Theoretical Physics / Physique théorique (DTP-DPT)
Invited Speaker / Conférencier invité
Next generation experiments are poised to help answer fundamental questions about neutrinos and dark matter, but rely on a quantitative understanding of perturbative and nonperturbative QCD. I briefly review the status of experimental searches and theoretical calculations in searchers for lepton number and CP violation in the neutrino sector, and for WIMP dark matter direct detection.
Dr
Gordon James
(University of Calgary)
14/06/2016, 08:30
Atmospheric and Space Physics / Physique atmosphérique et de l'espace (DASP-DPAE)
Oral (Non-Student) / orale (non-étudiant)
The Radio Receiver Instrument (RRI) launched in 2013 as part of the
Enhanced Polar Outflow Probe (ePOP) payload on the Canadian CASSIOPE
small satellite has been successfully operated in a number collaborative
transionospheric propagation experiments. The RRI is a digital receiver
that operates in the frequency range from 10 Hz to 18 MHz and connects
to 4 tubular monopoles usually...
Dr
Gareth Perry
(University of Calgary)
14/06/2016, 08:45
Atmospheric and Space Physics / Physique atmosphérique et de l'espace (DASP-DPAE)
Oral (Non-Student) / orale (non-étudiant)
Since the outset of science operations with the Enhanced Polar Outflow Probe (e-POP) Radio Receiver Instrument (RRI) in September 2013, over 100 conjunctions with Super Dual Auroral Radar Network (SuperDARN) radars have been completed. With the cross-dipole configuration of RRI's four monopole antennas, and the receiver's high sampling rate, it is possible to determine the polarization state...
Etienne Rollin
(Carleton University)
14/06/2016, 08:45
Physics Education / Enseignement de la physique (DPE-DEP)
Oral (Non-Student) / orale (non-étudiant)
Astrophysics concepts acquired in undergraduate courses are sometimes difficult to explore in a teaching laboratory for upper year physics students. We will share our experience developing an experiment on variable stars offered as part of an undergraduate advanced lab courses at Carleton University. The stars studied were mainly of the delta-Scuti type (Dwarf Cepheid), because of their high...
Barbara Francisco
(University of Ottawa)
14/06/2016, 08:45
Industrial and Applied Physics / Physique industrielle et appliquée (DIAP-DPIA)
Oral (Non-Student) / orale (non-étudiant)
90Sr (t1/2 = 28.80yr) has a relatively long life and due to its chemical similarity to calcium, 90Sr accumulates within the skeletal structure of animals and some plants. The aim of this work is optimize a methodology to determine stable Sr and 90Sr in environmental samples including plants, insects, animals and water. The 88Sr was measured by ICP-MS Triple Quad (8800, Agilent Technologies)...
Richard Ford
(SNOLAB)
14/06/2016, 09:00
Particle Physics / Physique des particules (PPD)
Oral (Non-Student) / orale (non-étudiant)
A large capacity purification plant and fluid handling system has been constructed for the SNO+ neutrino and double-beta decay experiment, located 6800 feet underground at SNOLAB, Canada. SNO+ is a refurbishment of the original SNO detector to fill the acrylic vessel with liquid scintillator based on Linear Alkylbenzene (LAB) and 2 g/L PPO, and also has a phase to load natural tellurium into...
Hichem Guerboukha
(École Polytechnique de Montréal)
14/06/2016, 09:00
Industrial and Applied Physics / Physique industrielle et appliquée (DIAP-DPIA)
Oral (Student, Not in Competition) / Orale (Étudiant(e), pas dans la compétition)
For several years, THz spectroscopy and imaging have been applied to many different fields. However, some burdens still remain in its commercial generalization, particularly for the industry sector. One of these difficulties lies in the acquisition time. In a typical THz time-domain spectroscopy system (THz-TDS), the THz pulse is sampled in time by the means of a micrometer linear delay line....
xiaoyu cui
(Canadian Light Source)
14/06/2016, 09:00
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Invited Speaker / Conférencier invité
In this presentation, I will present the many-body interactions in solids studies by high resolution ARPES. High-resolution angle-resolved photoemission spectroscopy studies of Fe(110) and Ni(110) single crystals has been conducted to clarify the role of many-body interactions acting on the quasi-particles at the Fermi level at low temperatures. We have evaluated the real and imaginary parts...
Mr
Elyas Shaswary
(Dept. of Physics, Ryerson University)
14/06/2016, 09:00
Physics in Medicine and Biology / Physique en médecine et en biologie (DPMB-DPMB)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
The resolution of conventional single-element ultrasound imaging varies spatially and depends on several factors, such as the central frequency, bandwidth, and the transducer’s active aperture size. Synthetic aperture focusing techniques (SAFT) enable dynamic focusing, which, among others, could lead to improvements in the spatial resolution of ultrasound imaging systems. In SAFT, a large...
Martin Connors
(Athabasca University)
14/06/2016, 09:00
Atmospheric and Space Physics / Physique atmosphérique et de l'espace (DASP-DPAE)
Oral (Non-Student) / orale (non-étudiant)
Most AUTUMNX sites were installed in late 2014, forming a meridian chain along the eastern shore of Hudson Bay. In early 2015, a second, more widely spaced, chain became operational at the longitude of Iqaluit/Kuujauq. These chains provide good coverage in longitude and latitude in eastern Canada, using highly accurate and reliable THEMIS class magnetometers from UCLA. Many substorms have been...
Ian Blokland
(University of Alberta)
14/06/2016, 09:00
Physics Education / Enseignement de la physique (DPE-DEP)
Oral (Non-Student) / orale (non-étudiant)
The Augustana Campus of the University of Alberta will be introducing two major pedagogical initiatives in 2017 that will provide opportunities to reimagine the student experience. One such opportunity will be the creation of an exclusively lab-based, multidisciplinary, compressed-term science course designed for non-science students. I will begin by outlining the context of this new course...
Michael Meiers
14/06/2016, 09:00
Theoretical Physics / Physique théorique (DTP-DPT)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
An investigation of an analogous structure to an event horizon in theories which break Lorentz symmetry. Recent work has shown that in simple spacetimes Lorentz violating theories, such as Einstein-Aether or Horava-Lifshitz, singularities lie behind a *universal horizon* . In the limiting case, signals travel along an incompressible aether which results in an infinitely fast speed of...
James L. Harden
(University of Ottawa)
14/06/2016, 09:00
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Oral (Non-Student) / orale (non-étudiant)
We present x-ray photon correlation spectroscopy experiments on a set of soft glassy solids, including concentrated nanocolloidal gels, nanoemulsions, and Laponite clay suspensions, subject to in-situ oscillatory shear strain that provide insight into particle rearrangements above yielding at the nanometer scale and their connection to dynamical and mechanical behaviour of the materials. The...
Erica Caden
(Laurentian University)
14/06/2016, 09:15
Particle Physics / Physique des particules (PPD)
Oral (Non-Student) / orale (non-étudiant)
SNO+ is a multipurpose neutrino experiment at SNOLAB. Our main physics goal is searching for neutrinoless double beta decay in Tellurium-130. Much work had been done to transform a heavy water detector into a scintillator detector. We are currently commissioning the experiment with water and I will show some early data.
Mr
Elyas Shaswary
(Dept. of Physics, Ryerson University)
14/06/2016, 09:15
Physics in Medicine and Biology / Physique en médecine et en biologie (DPMB-DPMB)
Oral (Student, Not in Competition) / Orale (Étudiant(e), pas dans la compétition)
In this study, the feasibility of obtaining 2D temperature change maps was investigated by estimating the change in backscattered energy of the acoustic harmonics and comparing it with the standard RF echo shift technique. A commercial high-frequency ultrasound scanner (Vevo® 770, Visualsonics Inc., Toronto, ON, Canada) with a 25-MHz center frequency wide-band single-element transducer...
Mats Selen
(Universiry of Illinois)
14/06/2016, 09:15
Physics Education / Enseignement de la physique (DPE-DEP)
Invited Speaker / Conférencier invité
The love of tinkering is perhaps the single most universal trait among scientists. From designing an experiment to building a computer application to solving a differential equation, the cycle of "observe - explain - test - revise” is at the root of the scientific creative process.
Driven by the love of tinkering, we have developed a small low-cost wireless lab system with the goal of...
Dr
Oyedemi Oyekola
(Private)
14/06/2016, 09:15
Atmospheric and Space Physics / Physique atmosphérique et de l'espace (DASP-DPAE)
Oral (Non-Student) / orale (non-étudiant)
Oyedemi S. Oyekola
Etobicoke, ON M8V 3C8 Canada
Email: ooyekola@gmail.com
Abstract. The structure of evening and nighttime F-region vertical drift component of is vital for understanding the physics of the development of the occurrence of equatorial irregularities. In addition, postsunset ionospheric height has also been attributed as one of the most important factors for the occurrence...
Mr
Alexandre Gagné
(Canadian Nuclear Laboratories)
14/06/2016, 09:15
Instrumentation and Measurement Physics / Physique des instruments et mesures (DIMP-DPIM)
Oral (Non-Student) / orale (non-étudiant)
²³²Th is expected to be the major internal dose contributor for nuclear workers in the development of new Th fuels. Since new fuels are usually processed in the same facilities as U fuel is handled, U might also be a significant internal dose contributor. The development of rapid and sensitive analytical methods for the determination of these elements at the levels observed in bioassay samples...
Saoussen MBAREK
(University of Waterloo)
14/06/2016, 09:15
Theoretical Physics / Physique théorique (DTP-DPT)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
In this work, we will be introducing so called "thermalons"and studying them in 5 dimentional Gauss-Bonnet Gravity. Thermalons can mediate phase transitions between different vacua in higher curvature gravity, potentially changing the asymptotic structure of the spacetime. Treating the cosmological constant as a dynamical parameter, we study these phase transitions in the context of extended...
Michael Rogers
(University of Ottawa)
14/06/2016, 09:15
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Oral (Non-Student) / orale (non-étudiant)
The deformation of most types of metals involves an irreversible flow of crystallographic dislocations. This allows for their ductility. The deformation of a metallic shape memory alloy (SMA), on the other hand, is accommodated by a solid-solid phase transition. If deformed in the low-temperature martensitic phase, an SMA can be returned to its original shape by raising its temperature to the...
Elspeth Cudmore
(Carleton University)
14/06/2016, 09:30
Particle Physics / Physique des particules (PPD)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
For the current generation of experiment on particle astrophysics low backgrounds are very important, which comes with the need for very sensitive measurement tools. A new generation of lucas cells has been produced and this presentation describes the characterization and first steps to simulating the cells performed in the summer 2015. This presentation won first prize at the SNOLAB...
Richard Alsop
(McMaster University)
14/06/2016, 09:30
Physics in Medicine and Biology / Physique en médecine et en biologie (DPMB-DPMB)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
All drugs must cross the lipid membrane to enter the cell, either by passive or active transport. Diffusing drug molecules may interact with, or embed in, the bilayer and change membrane structure and function. We have observed a significant interaction between cholesterol and the common analgesic, ibuprofen, in model lipid membranes [1]. Using X-ray diffraction in highly oriented,...
Ms
Carolyn Cadogan
(The University of Western Ontario, Department of Physics and Astronomy)
14/06/2016, 09:30
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
In the quest to develop a silicon (Si) based light source, for optical and optoelectronic applications, researchers have explored various techniques. One such technique is the use of self-assembled Si-nanoclusters (Si-NC) embedded in a silicon nitride (Si3Nx) matrix. This system has shown great promise, displaying both photoluminescence and electroluminescence.[1,2] Despite such achievements,...
Wilson Brenna
(University of Waterloo)
14/06/2016, 09:30
Theoretical Physics / Physique théorique (DTP-DPT)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
I will discuss methods to find and extract critical exponents from numerical black holes. This procedure is nontrivial because numerically we compute only the temperature and entropy; assumptions will be made about the complete thermodynamical description via a First Law and Smarr Relation, and tools such as Padé Approximants will be examined. This procedure will be quite general, allowing for...
Prof.
David Knudsen
(University of Calgary)
14/06/2016, 09:30
Atmospheric and Space Physics / Physique atmosphérique et de l'espace (DASP-DPAE)
Oral (Non-Student) / orale (non-étudiant)
Launched in November 2013, European Space Agency's Swarm mission* is now halfway through its nominal science mission. Swarm's on-board experiments, including the Canadian Electric Field Instruments, continue to collect scientific data daily in conjunction with ground-based observatories in Canada and elsewhere. Numerous scientific investigations have been completed or are underway, covering...
Prof.
Mykhaylo Evstigneev
(Memorial University of Newfoundland)
14/06/2016, 09:30
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Invited Speaker / Conférencier invité
In a nanoscale friction experiment, the tip of an atomic force microscope (AFM) cantilever is dragged along an atomically flat surface, and the resulting friction force is measured optically from the cantilever deformation. Due to the small size of the system, thermal noise effects coming from the atomistic degrees of freedom play an important role. In this talk, the ideas of stochastic...
Mr
Amintor Dusko do Amaral Oliveira
(University of Ottawa)
14/06/2016, 09:45
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
Recent advances in manipulation of impurities in Silicon by STM techniques, both dangling bonds on Si surface [1] and dopant atoms in Si [2], enable the realization of atomic scale circuits in Si. In this work we focus on phosphorus (P) donors in Si [3]. The 6-fold degenerate conduction band of Si combined with valley-orbit coupling results in a manifold of 6 states of a single P donor. We...
Esmat Elhami
(University of Winnipeg)
14/06/2016, 09:45
Physics in Medicine and Biology / Physique en médecine et en biologie (DPMB-DPMB)
Oral (Non-Student) / orale (non-étudiant)
NEMA (National Electrical Manufacturers Association) Standard Measurements are used for evaluating the performance of the positron emission tomography scanners used in animal imaging. There are various measurements, including spatial resolution, scatter fraction, sensitivity, and image quality.
In this study the effects of varying the testing procedures of the NEMA NU4-2008 standard for...
Prof.
Razvan Gornea
(Carleton University)
14/06/2016, 09:45
Particle Physics / Physique des particules (PPD)
Oral (Non-Student) / orale (non-étudiant)
Neutrino oscillation experiments have shown that neutrinos have finite masses. The study of neutrino-less double beta decay may bring insight on the neutrino mass generation and determine the effective neutrino mass. The next generation neutrino-less double beta decay experiments, with a very large active mass and ultra low background, like the proposed nEXO, will have a sensitivity to the...
Robie Hennigar
14/06/2016, 09:45
Theoretical Physics / Physique théorique (DTP-DPT)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
The thermodynamics of black holes has remained a subject of interest for more than 40 years. Recently attention has been devoted to the thermodynamics of black holes in extended phase space where the cosmological constant is treated as a thermodynamic variable with the interpretation of pressure. Within this framework, Kubiznak and Mann demonstrated that the charged anti de Sitter black hole...
Johnathan Burchill
(University of Calgary)
14/06/2016, 09:45
Atmospheric and Space Physics / Physique atmosphérique et de l'espace (DASP-DPAE)
Oral (Non-Student) / orale (non-étudiant)
The 3D ion drift measurements from the Electric Field Instruments (EFI) of the European Space Agency’s Swarm mission provide excellent opportunities for multi-satellite and ground-conjunction investigations of ionospheric and auroral physics. Ion drifts are derived from estimates of low-energy (<10 eV) ion energy/angle distributions obtained by Thermal Ion Imagers. In practice, the EFI...
Prof.
James M. Fraser
(Queen's University)
14/06/2016, 10:30
Herzberg Public, Plenary, and Medal Talks / Conférenciers des sessions Herzberg, plénières et médaillés (CAP-ACP)
Invited Speaker / Conférencier invité
Though an extensive amount of literature documents the improved learning gains made by interactive teaching compared to traditional lecture delivery, results vary widely between courses[1]. Part of the problem is that different instructors aim for active learning through widely varying (and sometimes conflicting) approaches[2]. In addition, even the most well-verified and effective teaching...
Dr
Mario Pinto
(NSERC)
14/06/2016, 11:00
Herzberg Public, Plenary, and Medal Talks / Conférenciers des sessions Herzberg, plénières et médaillés (CAP-ACP)
Plenary Speaker / Conférencier plénier
I set a number of tasks for myself and for NSERC. Developing and launching NSERC 2020, our strategic plan for the next five years, stood at the top of the list. During a year-long consultation, NSERC benefitted greatly from the input and perspectives of our community through a variety of consultations. I will outline NSERC 2020 in my talk.
14/06/2016, 12:00
Other Sessions or Meetings / Autres séances ou réunions
This is a moderated panel discussion and Q&A (with NSERC reps, physicists and industry partners) on NSERC funding opportunities available to support researcher-industry partnerships. Learn how to get started, the challenges/rewards and tips for a successful partnership.
Panelists will be named as they are confirmed.
Prof.
Mark Boulay
(Carleton University)
14/06/2016, 13:15
Particle Physics / Physique des particules (PPD)
Invited Speaker / Conférencier invité
The DEAP-3600 experiment will search for dark matter particle interactions on 3.6 tonnes of liquid argon at SNOLAB. The argon is contained in a large ultralow-background acrylic vessel viewed by 255 8-inch photomultiplier tubes. Very good pulse-shape discrimination has been demonstrated for scintillation in argon, and the detector has been designed to allow control of (alpha,n) and external...
Prof.
Rituparna Kanungo
(Saint Mary's University)
14/06/2016, 13:15
Nuclear Physics / Physique nucléaire (DNP-DPN)
Invited Speaker / Conférencier invité
Nuclei far from stability offer us the scope of exploring new features that surface prominently at large isospin and weak binding. This led to the discovery of the nuclear halo bringing a new era in nuclear science breaking the boundaries of conventional concepts. The halo properties elucidate new features that till date remain a challenge to decipher from fundamental principles. Defining...
Prof.
Nicolas Joly
(Max-Planck Institute for the Science of Light)
14/06/2016, 13:15
Division of Atomic, Molecular and Optical Physics, Canada / Division de la physique atomique, moléculaire et photonique, Canada (DAMOPC-DPAMPC)
Invited Speaker / Conférencier invité
Photonic crystal fibers (PCF) offer unique control of dispersion and nonlinearity and have revolutionized nonlinear optics. We present the possibility to use hollow-core and solid-core PCF for the generation of bright twin beams and photon triplet states.
One advantage to use optical fibers is that both signal and idler can be generated in a single spatial mode. By pumping close to the zero...
Jolanta Lagowski
(Memorial University of Newfoundland)
14/06/2016, 13:15
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Invited Speaker / Conférencier invité
This talk will focus on discussing and analyzing intermolecular interactions between organic conjugated polymers used in organic light-emitting diodes (OLEDs) and between conjugated oligomers and carbon nanotubes (CNTs) in CNT-oligomer composites. Dispersion-corrected density functional theory will be employed to study these systems. The construction of multilayered OLEDs typically involves...
Prof.
Paula Heron
(University of Washington)
14/06/2016, 13:15
Women in Physics / Femmes en physique (CEWIP-CEFEP)
Invited Speaker / Conférencier invité
Over the past few decades, systematic research has shown that many physics students express essentially the same (incorrect) ideas both before and after instruction. It is frequently assumed that these ideas can be identified by research and then addressed through “interactive” teaching approaches such as hands-on activities and small-group collaborative work. In many classrooms, incorrect...
Masoud Ghezelbash
(University of Saskatchewan)
14/06/2016, 13:15
Theoretical Physics / Physique théorique (DTP-DPT)
Invited Speaker / Conférencier invité
We present new classes of exact solutions to the five dimensional Einstein gravity with cosmological constant, coupled to the Maxwell and dilation fields. The theory has two coupling constants for dilation-Maxwell and dilation-cosmological constant terms. The solutions are non-stationary and moreover almost regular everywhere for non-zero coupling constants. The cosmological constant depends...
Hendrick de Haan
(University of Ontario Institute of Technology)
14/06/2016, 13:15
Physics in Medicine and Biology / Physique en médecine et en biologie (DPMB-DPMB)
Oral (Non-Student) / orale (non-étudiant)
The translocation of biopolymers such as DNA through nanopores has received a great deal of attention due to applications such as sequencing DNA or sorting polymers by size. In this presentation I will discuss results from a joint experimental-theoretical project examining the translocation of the filamentous fd virus through nanopores. The fd virus is relatively stiff with a persistence...
Mr
Charles D. A. Nokes
(University of Alberta)
14/06/2016, 13:15
Atmospheric and Space Physics / Physique atmosphérique et de l'espace (DASP-DPAE)
Invited Speaker / Conférencier invité
Ex-Alta 1 is the pioneer cube satellite for the AlbertaSat team at the University of Alberta and will be the first built-in-Alberta satellite. This 3U cube satellite is designed and assembled primarily by volunteer undergraduate students at the U of A, with guidance from several researchers and faculty members. In this way, AlbertaSat offers a unique opportunity to train highly qualified...
Mr
Joshua Trevisanutto
(Lakehead University)
14/06/2016, 13:30
Physics in Medicine and Biology / Physique en médecine et en biologie (DPMB-DPMB)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
Recent advancements in nanotechnology have attracted worldwide attention. The potential applications of metallic nanoparticles, especially gold nanoparticles or nanorods (or gold colloids), are very promising and attractive. The unique optical, chemical, and physical properties of gold nanoparticles make them an ideal candidate for biochemical sensing, medical diagnostics/therapeutics, imaging...
Mr
Ryan Underwood
(Queen's University)
14/06/2016, 13:45
Particle Physics / Physique des particules (PPD)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
SuperCDMS searches for dark matter in the form of Weakly Interacting Massive Particles (WIMPs) using germanium detectors operated at a few tens of mK. Particles are detected via the change in resistance of a superconducting transition edge sensor heated by lattice vibrations (phonons) from the interaction. A bias voltage applied across the detector drifts electron-hole pairs produced in an...
Prof.
Ariel Edery
(Bishop's University)
14/06/2016, 13:45
Theoretical Physics / Physique théorique (DTP-DPT)
Oral (Non-Student) / orale (non-étudiant)
Recently, it has been pointed out that dimensionless actions in four dimensional curved spacetime possess a symmetry which goes beyond scale invariance but is smaller than full Weyl invariance. This symmetry was dubbed *restricted Weyl invariance*. We show that starting with a restricted Weyl invariant action that includes pure $R^2$ gravity and a Higgs sector with no explicit mass, one can...
Badamsambuu Jigmeddorj
(University of Guelph)
14/06/2016, 13:45
Nuclear Physics / Physique nucléaire (DNP-DPN)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
The Xe isotopes are centrally located in the $Z>50$, $N<82$ region that
displays an extraordinarily smooth evolution of simple collective signatures.
However, the collectivity of excited states in this region is very poorly
characterized because of a general lack of spectroscopic data for
low-spin states that provide measures of collective properties such as relative
and absolute...
Joyce Poon
(University of Toronto)
14/06/2016, 13:45
Division of Atomic, Molecular and Optical Physics, Canada / Division de la physique atomique, moléculaire et photonique, Canada (DAMOPC-DPAMPC)
Invited Speaker / Conférencier invité
The surging progress in silicon photonics over the past decade has been driven by its potential deployment in low cost, high bandwidth, wavelength-division multiplexed short reach optical interconnections in datacenters. Many device level advances have been made in recent years, and the variety of high quality components that have become available now motivate extending the application of...
Prof.
Andre Longtin
(Physics, U. Ottawa)
14/06/2016, 13:45
Physics in Medicine and Biology / Physique en médecine et en biologie (DPMB-DPMB)
Invited Speaker / Conférencier invité
This talk will discuss a non-conventional neural coding task that may apply more broadly to many senses in higher vertebrates. We ask whether and how a non-visual sensory system can focus on an object. We present recent experimental and modeling work that shows how the electric sense can perform such neuronal focussing. This sense is the main one used by weakly electric fish to navigate,...
Brigitte Vachon
(McGill University (CA))
14/06/2016, 13:45
Women in Physics / Femmes en physique (CEWIP-CEFEP)
Oral (Non-Student) / orale (non-étudiant)
The third edition of the Canadian Conference for Undergraduate Women in Physics (CCUWiP) series was held at Dalhousie University on 8-10 January 2016. A conference report for this 2016 edition will be presented as well as statistics from the past three editions held in Canada so far. The second part of this talk will present the status of the ongoing work to develop a long-term partnership...
Yangyang Shen
(University of Calgary)
14/06/2016, 13:45
Atmospheric and Space Physics / Physique atmosphérique et de l'espace (DASP-DPAE)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
Terrestrial ion outflow and loss to space is the result of acceleration to escape speed of ionospheric ions that normally are strongly bound to earth through gravity. Previous research suggests this acceleration takes place in multiple steps. We investigate low-energy (<10 eV) ion initial energization processes in the topside ionosphere in both hemispheres using data from the SEI, MGF and RRI...
Christian Boudreault
(Collège militaire royal de Saint-Jean / Université de Montréal)
14/06/2016, 13:45
Theoretical Physics / Physique théorique (DTP-DPT)
Oral (Student, Not in Competition) / Orale (Étudiant(e), pas dans la compétition)
We consider the one-dimensional spin chain for arbitrary spin s on a periodic chain with N sites,
H = \sum_i^N ( a (S_i^z)^2 + b S_i^z S_{i+1}^z ),
the generalization of the chain that was studied by Blume and Capel. The Hamiltonian only involves the z component of the spin thus it is essentially an Ising model. The Hamiltonian also figures exactly as the anisotropic term in the famous...
Prof.
Krzysztof Starosta
(Simon Fraser University)
14/06/2016, 14:00
Nuclear Physics / Physique nucléaire (DNP-DPN)
Oral (Non-Student) / orale (non-étudiant)
Neutron-rich Sr isotopes are characterized by a sudden onset of quadrupole deformation at neutron number $N=60$ demonstrated by the dramatic drop in excitation energy of the first $2^+_1$ state. While theoretical calculations reproduce this onset of deformation qualitatively, they differ in the details of the deformation parameters and excitation energies. Though the emphasis is usually put on...
Jiashu Wu
(University of Calgary)
14/06/2016, 14:00
Atmospheric and Space Physics / Physique atmosphérique et de l'espace (DASP-DPAE)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
The field-aligned current (FAC) system associated with auroral arcs provides important information regarding the generator responsible for multiple arc systems, and presumably for individual arcs themselves. We have identified two types of FAC configurations in multiple parallel arc systems using ground-based optical data from the Themis all-sky imagers (ASIs), and magnetometers onboard the...
Charlotte Froese Fischer
(NIST)
14/06/2016, 14:00
Women in Physics / Femmes en physique (CEWIP-CEFEP)
Oral (Non-Student) / orale (non-étudiant)
In atomic physics, the many-body problem is computationally challenging. When theory is well understood, accurate calculations can predict results that may be difficult to measure experimentally. For heavy elements or highly ionized systems, relativistic and quantum electrodynamic effects, not to mention nuclear effects, are less well understood and computation can assess the limitation of...
Robert Mann
(University of Waterloo)
14/06/2016, 14:00
Theoretical Physics / Physique théorique (DTP-DPT)
Oral (Non-Student) / orale (non-étudiant)
In non-relativistic physics a geoid is a surface of constant gravitational potential. Here I propose, in the context of general relativity, the notion of a geoid -- a surface of constant "gravitational potential". This idea emerges as a specific choice of a previously proposed, more general and operationally useful construction called a quasilocal frame -- that is, a choice of a two-parameter...
Hanyang Wang
(University of Ottawa)
14/06/2016, 14:00
Theoretical Physics / Physique théorique (DTP-DPT)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
Hanyang Wang, Gary W. Slater
University of Ottawa
Ratcheting systems make it possible to control the motion of particles in such a way that it becomes possible to separate mixtures of particles on the basis of various physical properties (such as charge, size, shape, etc.). The ratcheting system that we study is a standard microfluidic channel with symmetry breaking obstacles placed...
Francisco Andres Vazquez de Sola
(Queen's University)
14/06/2016, 14:00
Particle Physics / Physique des particules (PPD)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
More than eighty years after its existence was originally postulated, the search for Dark Matter is still ongoing. NEWS is a direct detection experiment that aims to detect WIMPs with a metallic spherical detector with a high voltage electrode in its centre, with gas as its target mass.
In the context of the NEWS experiment, our estimators of the energy of events, and their position within...
Paulina Corona Ugalde
(University of Waterloo)
14/06/2016, 14:15
Theoretical Physics / Physique théorique (DTP-DPT)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
We study the different scenarios that repeated quantum interactions between a system S and an ancillary system Sm induces on the former. These latter systems play the role of measurement devices, or meters. Distinct dynamics emerge depending on various limits that can be taken for the ancillae.
Of special interest is the case where induced effective interactions between subsystems of a...
Prof.
Catherine Mavriplis
(NSERC - Pratt & Whitney Chair for Women in Science and Engineering, Department of Mechanical Engineering, University of Ottawa)
14/06/2016, 14:15
Women in Physics / Femmes en physique (CEWIP-CEFEP)
Invited Speaker / Conférencier invité
Chairholder Catherine Mavriplis will give an overview of the activities of the NSERC / Pratt & Whitney Canada Chair for Women in Science and Engineering for Ontario. As the Chair approaches the end of its term, we'll look back at the impact it has had in several areas including interdisciplinary research in Communications, Education, Sociology and History. Since the Chair program launch, over...
Michelle Przedborski
(Brock University)
14/06/2016, 14:15
Theoretical Physics / Physique théorique (DTP-DPT)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
Granular chains have been the focus of a number of studies, in part due to their numerous applications, ranging from shock absorption and vibration reduction to energy localization. Force impulses to an unloaded granular chain result in a propagating solitary wave (SW), analogous to a soliton of the Korteweg-de Vries equation. When SWs collide with a boundary or another SW, secondary solitary...
Bela Joos
(University of Ottawa)
14/06/2016, 14:15
Physics in Medicine and Biology / Physique en médecine et en biologie (DPMB-DPMB)
Oral (Non-Student) / orale (non-étudiant)
In the murky waters of the tropics, live weakly electric fish which use a continuous high frequency electric organ discharge (EOD) to sense nearby objects and communicate with conspecifics. Eigenmannia’s characteristic frequency is within the species range of 250 to 600 Hz which it shifts when necessary to avoid jamming. The nearly dipolar oscillating electric field is generated by parallel...
Donald Danskin
(Natural Resources Canada)
14/06/2016, 14:15
Atmospheric and Space Physics / Physique atmosphérique et de l'espace (DASP-DPAE)
Oral (Non-Student) / orale (non-étudiant)
The Radio Receiving Instrument (RRI) on e-POP payload of the CASSIOPE satellite has a relatively high sampling rate and orthogonal dipole antennas which permit the observation of continuous wave (CW), pulse and phase coded signals from transmitters on the earth. In this study, high frequency (HF) 13-bit Barker-coded binary phase shifting keying (BPSK) and CW signals are detected from a...
Mr
Mohsen Falamarzi Askarani
(Department of Physics and Astronomy, University of Calgary)
14/06/2016, 14:15
Division of Atomic, Molecular and Optical Physics, Canada / Division de la physique atomique, moléculaire et photonique, Canada (DAMOPC-DPAMPC)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
Rare-earth-ion (REI) doped materials offer unique spectroscopic properties, such as narrow optical linewidths, or long-lived shelving levels that allow for spectral tailoring of their inhomogeneously broadened absorption lines. Indeed, both these properties are required simultaneously in order to implement many of the potential applications of (REI) doped materials, such as optical quantum...
Jonathan Williams
(Simon Fraser University)
14/06/2016, 14:15
Nuclear Physics / Physique nucléaire (DNP-DPN)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
Electromagnetic transition rate measurements serve as a fundamental probe of nuclear structure
and provide a stringent test for theoretical models. Doppler shift lifetime measurements offer an
opportunity to directly access information about electromagnetic transition rates and
discriminate between model calculations. The TIGRESS Integrated Plunger device (TIP), constructed at SFU, supports...
Mr
Frédéric Girard
(Laurentian University)
14/06/2016, 14:15
Particle Physics / Physique des particules (PPD)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
The search for dark matter calls for increasingly sensitive experiments. For several decades now, scientists have built more and more sensitive detectors in the hope to directly detect WIMPs, a type of candidate particles for dark matter. WIMPs should interact with normal matter by elastic scattering with nuclei. Experiments are typically performed underground to shield them from cosmic and...
Pitam Mitra
(University of Alberta)
14/06/2016, 14:30
Particle Physics / Physique des particules (PPD)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
The PICO experiment is a dark matter search using superheated liquid C$_3$F$_8$. The experiment operates two bubble chambers, PICO-2L and PICO-60, at the SNOLAB facility 2km underground, and is designed to be most sensitive to spin-carrying dark matter particles with a mass range of 10-10,000 GeV/$c^2$. PICO bubble chambers are threshold detectors that can be operated within a set of...
Mr
Pavithran Iyer
(Université de Sherbrooke)
14/06/2016, 14:30
Theoretical Physics / Physique théorique (DTP-DPT)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
Noise is imminent to a quantum computing process. With the help of quantum error correcting codes, the logical information in a qubit can be preserved by encoding it in a system of several physical qubits and by performing gates in a fault tolerant manner. However, it is crucial to know the noise model affecting the physical qubits, in order to estimate the error on the logical qubit and...
Jingwen Li
(polytechnique de montreal)
14/06/2016, 14:30
Division of Atomic, Molecular and Optical Physics, Canada / Division de la physique atomique, moléculaire et photonique, Canada (DAMOPC-DPAMPC)
Oral (Student, Not in Competition) / Orale (Étudiant(e), pas dans la compétition)
We demonstrate a hollow-core photonic Bragg fiber for bulk and surface sensing applications. The sensor operates on a resonant sensing modality. Variation in the fiber core effective refractive index modifies the bandgap guidance of the fiber, leading to a spectral shift in the fiber transmission spectrum. As a demonstration for the bulk sensing application, we apply the fiber sensor to detect...
Ms
Tammy Zidar
(University of Guelph)
14/06/2016, 14:30
Nuclear Physics / Physique nucléaire (DNP-DPN)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
Spectra resulting from the decay reaction of 33Mg were captured using the GRIFFIN γ-ray spectrometer coupled with the SCEPTAR β particle detector at the Canadian laboratory, TRIUMF. A radioactive beam of approximately 104 counts per second of 33Mg was delivered by the Isotope Separator and Accelerator (ISAC) facility. In the past, nuclei away from the valley of stability were experimentally...
Christopher Bergevin
(York University)
14/06/2016, 14:30
Physics in Medicine and Biology / Physique en médecine et en biologie (DPMB-DPMB)
Oral (Non-Student) / orale (non-étudiant)
The vertebrate ear both responds to and emits sound. Sounds from the ear, known as otoacoustic emissions (OAEs), provide a means to probe the biophysics of auditory transduction and amplification. Spontaneous emissions (SOAEs) can also be present, appearing as coherent peaks in the spectral domain. Statistical properties of SOAEs, such as the “ring of fire” (observed via a 2-D histogram of the...
Éric Dupuis
(Université de Montréal)
14/06/2016, 14:30
Theoretical Physics / Physique théorique (DTP-DPT)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
We consider the decay of vortices trapped in a $U(1)$-breaking false vacuum of a Einstein-Hilbert-Higgs theory in $2 + 1$ dimensions. In the true vacuum, the $U(1)$ symmetry is unbroken. The potential of the model allows the formation of metastable vortex solutions. These vortices contain the true vacuum inside in addition to a unit of magnetic flux and the appropriate topologically...
Bing Yang
(University of Calgary)
14/06/2016, 14:30
Atmospheric and Space Physics / Physique atmosphérique et de l'espace (DASP-DPAE)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
Magnetospheric convection, the main process of the acceleration and injection of energetic particles into the magnetosphere, plays an important role in the study of Earth’s magnetosphere. One of our previous studies has compared the motion of Patchy Pulsating Aurora (PPA) patches with the corresponding ionospheric convection inferred from the SuperDARN radar measurements. The result shows that...
Prof.
Russell Jacobs
(Beckman Institute / Caltech Brain Imaging Center)
14/06/2016, 15:00
Herzberg Public, Plenary, and Medal Talks / Conférenciers des sessions Herzberg, plénières et médaillés (CAP-ACP)
Plenary Speaker / Conférencier plénier
Like any technology, μMRI and μPET have appropriate and inappropriate uses. I will discuss why one might bother with either; then cover a range of applications: how 3D atlas of mouse and quail can be created from high resolution MR images; delve into how lesions and brain structure changes in mouse models of multiple sclerosis are amenable to study with MRI; describe how statistical parametric...
Edward Wilson-Ewing
(Max Planck Institute for Gravitational Physics (Albert Einstein)
14/06/2016, 16:15
Theoretical Physics / Physique théorique (DTP-DPT)
Invited Speaker / Conférencier invité
I will explain how the large-scale cosmological dynamics can be obtained from the hydrodynamics of condensate states of quantum gravity (to be specific, isotropic group field theory condensate states in the Gross-Pitaevskii approximation). The correct Friedmann equations are recovered in the semi-classical limit for appropriate choices of the parameters in the action for the group field...
Chandra Curry
(SLAC National Accelerator Laboratory/University of Alberta)
14/06/2016, 16:15
Plasma Physics / Physique des plasmas (DPP)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
Self-generated magnetic fields are produced in high-intensity laser-plasma experiments from several mechanisms, including relativistic electron currents and misaligned density and temperature gradients (the Biermann Battery effect). Understanding the formation and timescales of these magnetic fields is important in several high energy density regimes ranging from astrophysical jets to the fast...
Tim Friesen
(Aarhus University (DK))
14/06/2016, 16:15
Nuclear Physics / Physique nucléaire (DNP-DPN)
Invited Speaker / Conférencier invité
Antihydrogen is the simplest pure anti-atomic system and an excellent candidate to test the symmetry between matter and antimatter. In particular, a precise comparison of the spectrum of anytihydrogen with that of hydrogen would be an excellent test of Charge-Parity-Time symmetry. The ALPHA antihydrogen experiment is able to produce and confine antihydrogen atoms in an Ioffe-Pritchard type...
Luca Corbellini
(Institut National de la Recherche Scientifique, Centre EMT, Varennes)
14/06/2016, 16:15
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
ε-Fe2O3 is a metastable intermediate phase of iron (III) oxide, between maghemite (γ-Fe2O3) and hematite (α-Fe2O3). Epsilon ferrite has been investigated essentially because of its ferrimagnetic ordering with a Curie temperature of circa 500 K. However, given its orthorhombic crystal structure that belongs to the non-centrosymmetric and polar space group *Pna21*, it should exhibit...
Andrew Yau
(University of Calgary)
14/06/2016, 16:15
Atmospheric and Space Physics / Physique atmosphérique et de l'espace (DASP-DPAE)
Oral (Non-Student) / orale (non-étudiant)
The theoretical prediction of the “classical” polar wind dates back to the works of Banks et al., Lemaire et al., Marubashi, Nishida, and other authors in the late sixties and early seventies. Since then, direct in-situ observations of the polar wind have been made on a number of satellites above the topside ionosphere, notably ISIS-2, Akebono, and DE-1, at altitudes of 1400–50,000 km. In this...
Lilian Childress
(McGill University)
14/06/2016, 16:15
Division of Atomic, Molecular and Optical Physics, Canada / Division de la physique atomique, moléculaire et photonique, Canada (DAMOPC-DPAMPC)
Invited Speaker / Conférencier invité
Individual defects in crystalline materials can have electronic properties akin to those of isolated trapped atoms or ions. Recently, the nitrogen vacancy center, a type of defect in diamond, has emerged as as a particularly compelling example. Like atoms, these defect centers have spin degrees of freedom and and optical transitions that make them an attractive platform for building quantum...
Dr
Wolfgang Rau
(Queen's University)
14/06/2016, 16:15
Particle Physics / Physique des particules (PPD)
Oral (Non-Student) / orale (non-étudiant)
The Super Cryogenic Dark Matter Search (SuperCDMS) experiment uses cryogenic semiconductor detectors to search for Weakly Interacting Massive dark matter Particles (WIMPs). After more than a decade of operations of CDMS and SuperCDMS and a sequence of world leading results, the experimental setup in the Soudan underground laboratory in Minnesota is being decommissioned and SuperCDMS will move...
14/06/2016, 16:15
Invited Speaker / Conférencier invité
Panelists: Svetlana Barkanova (Acadia University), Melanie Campbell (University of Waterloo), Charlotte Froese Fischer (NIST), Adriana Predoi-Cross (University of Lethbridge), and Michael Steinitz (St. Francis Xavier University).
Dr
Martin Bolduc
(INO, Québec), Dr
Pierre Galarneau
(INO, Québec)
14/06/2016, 16:15
Industrial and Applied Physics / Physique industrielle et appliquée (DIAP-DPIA)
Invited Speaker / Conférencier invité
INO is an innovation house, it is home to the largest concentration of skill in the applied optics/photonics field and serves clients of all sizes from all parts of Canada and around the world. INO offers a complete range of integrated services to clients of all descriptions in every field of industrial activity. It also possesses a variety of technologies and innovative processes based on a...
Syed Bukhari
(Candian Nuclear Laboratories (CNL))
14/06/2016, 16:30
Surface Science / Science des surfaces (DSS)
Oral (Non-Student) / orale (non-étudiant)
Neutron Reflectometry (NR) is an ideal technique to study chemical reactions at surfaces and interfaces because it is a non-destructive technique which can determine in-situ the chemical profile in a film with nanometre resolution. Therefore, NR can provide information on the metal and oxide layer thickness and the changing interfaces between metal and oxide layer as well as oxide layer and an...
Jean-Sébastien Boisvert
(Université de Montréal)
14/06/2016, 16:30
Plasma Physics / Physique des plasmas (DPP)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
Dielectric barrier discharge is a well-known device for its diffuse discharge capability at atmospheric pressure. In a plane parallel configuration (2 mm gas width) with solid alumina dielectrics on each electrode, a diffuse discharge will occur under proper conditions. It is the case when the driving voltage is a sinusoidal waveform oscillating at 25 kHz and the feed gas is a Penning mixture...
Levan Lomidze
(University of Calgary)
14/06/2016, 16:30
Atmospheric and Space Physics / Physique atmosphérique et de l'espace (DASP-DPAE)
Oral (Non-Student) / orale (non-étudiant)
The Thermal Ion Imagers (TII) on the Swarm satellites measure ion distribution functions which carry information about ion temperature in the topside ionosphere. Ion temperature, which is obtained from the second moments of the imaged ion distribution, requires validation. One way to evaluate the accuracy of the TII ion temperature, as well as electron temperatures and densities measured by...
Jennifer Mauel
(Queen's University)
14/06/2016, 16:30
Particle Physics / Physique des particules (PPD)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
The GIOVE (Germanium Inner-Outer Veto) detector is a highly sensitive germanium
spectrometer used to screen materials for trace amounts of radioactivity. Material screening is an important aspect of the construction rare-event experiments such as GERDA and XENON, which require extremely low background levels. GIOVE is located at the Max Planck Institute for Nuclear and Particle Physics in...
Dr
Syed Bukhari
(Canadian Nuclear Laboratories)
14/06/2016, 16:45
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Oral (Non-Student) / orale (non-étudiant)
It is a common fact about alloys that surface chemical composition varies from the bulk in terms of elemental ratio and chemical state of the elements which can affect their material performances. That’s why deposition of alloy films is very challenging. We prepared CuNi (90/10) alloy thin films by D.C. magnetron sputtering on Si(111) substrates and studied the effect of deposition times and...
Jonathan Ziprick
14/06/2016, 16:45
Theoretical Physics / Physique théorique (DTP-DPT)
Invited Speaker / Conférencier invité
The main idea of loop quantum gravity (LQG) is to develop a canonical quantum theory of general relativity (GR). In this talk, I will give a pedagogical account of LQG aimed at physicists who are unfamiliar with the field. The main focus will be on basic elements of the construction and how these relate to more familiar objects in GR and quantum field theory.
Hichem Mezaoui
(University of New Brunswick)
14/06/2016, 16:45
Atmospheric and Space Physics / Physique atmosphérique et de l'espace (DASP-DPAE)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
In the context of scintillation, the chaotic behavior of the ionospheric plasma in the high latitude region is investigated using the GPS (Global Positioning System). The study is carried out with the use of the data from the Canadian High Arctic Ionospheric Network (CHAIN). The L1 GPS signal, sampled at 50 Hz, is characterized and analyzed. The statistical analysis is performed on both...
Prof.
Christian Moreau
(Université Concordia)
14/06/2016, 16:45
Industrial and Applied Physics / Physique industrielle et appliquée (DIAP-DPIA)
Invited Speaker / Conférencier invité
The strong basic training of physicists allows them to grasp important scientific and technological issues encountered in materials engineering. Physicists have an understanding of the fundamental mechanisms that govern the behavior and properties of materials while processing and using them in various applications. This understanding enables them to contribute effectively in multidisciplinary...
Sangyong Jeon
(McGill University)
14/06/2016, 16:45
Nuclear Physics / Physique nucléaire (DNP-DPN)
Invited Speaker / Conférencier invité
For the past two decades, two powerful heavy ion accelerators, the Relativistic Heavy Ion Collider (RHIC) and the Large Hadron Collider (LHC), have ushered in a new era of high energy nuclear physics. When the temperature reaches above 200 MeV/kB, quarks and gluons are no longer confined inside hadrons. Instead, they form a plasma state. This new state of nuclear matter, Quark-Gluon Plasma...
Dr
Gilles Gerbier
(Queen's University)
14/06/2016, 16:45
Particle Physics / Physique des particules (PPD)
Oral (Non-Student) / orale (non-étudiant)
The existence of Dark Matter in our Universe is nowadays well established, however, its exact nature still remains unknown. The goal of the NEWS-SNO (New Experiments with Spheres in SNOLAB) project is to search for particle candidates in mass regions not yet accessible by existing experiments. The planned NEWS-SNO detector consists of a spherical TPC (time-projection-chamber) out of ultrapure...
Mr
Christopher Pugh
(University of Waterloo/Institute for Quantum Computing)
14/06/2016, 16:45
Division of Atomic, Molecular and Optical Physics, Canada / Division de la physique atomique, moléculaire et photonique, Canada (DAMOPC-DPAMPC)
Oral (Student, Not in Competition) / Orale (Étudiant(e), pas dans la compétition)
Quantum Communication can be done using single photons generated via spontaneous parametric down conversion (SPDC). Since these protocols only use the signals that are collected by the receiver, the system is not as negatively affected by occasional drop outs as compared to classical communication protocols. In order to collect as many photons as possible, it is necessary to have a mechanism...
Jean-Michel Guay
(University of Ottawa)
14/06/2016, 17:00
Surface Science / Science des surfaces (DSS)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
We report the creation of angle independent colors on silver due to plasmonic effects arising from random nanoparticle distributions induced by picosecond laser exposure. The color is determined by the total accumulated fluence on the surface. This is valid for all combinations of laser parameters producing the same total accumulated fluence. Both spectral and extra-spectral colors can be...
Michael Clark
(Queen's University)
14/06/2016, 17:00
Particle Physics / Physique des particules (PPD)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
Pyrene is an interesting material because of its wavelength shifting properties. When irradiated with ultraviolet light, pyrene will emit light in the visible wavelengths. This property could be useful for experiments looking to observe scintillation light from noble gases such as argon and neon, which are popular target materials for dark matter direct detection experiments. Noble gases...
Robert Boyd
(University of Ottawa)
14/06/2016, 17:00
Division of Atomic, Molecular and Optical Physics, Canada / Division de la physique atomique, moléculaire et photonique, Canada (DAMOPC-DPAMPC)
Invited Speaker / Conférencier invité
This presentation first reviews the historical development of the field of nonlinear optics, starting from its inception in 1961. It then reviews some of its more recent developments, including especially how nonlinear optics has become a crucial tool for the developing field of quantum technologies. Fundamental quantum processes enabled by nonlinear optics, such as the creation of squeezed...
Jonathan Sharp
(University of Alberta)
14/06/2016, 17:15
Theoretical Physics / Physique théorique (DTP-DPT)
Oral (Non-Student) / orale (non-étudiant)
From the EPR paper in 1935, to Bell’s theorem in the 1960s, to Aspect’s EPR experiment in the 1980s and its recent refinements demonstrating km range correlations, it has become increasingly clear that entangled quantum mechanical systems are inherently nonlocal. EPR experiments highlight the theoretical divergence between quantum mechanics (QM) as a theory of matter in need of a theory of...
John Wei
(University of Toronto)
14/06/2016, 17:15
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Oral (Non-Student) / orale (non-étudiant)
Thin films of transition-metal oxides, by virtue of their high surface-to-volume ratio, tend to have very different thermodynamic phase stability than in bulk form. When these films are grown epitaxially on perovskite substrates, the heteroepitaxial mismatch can also induce strong interfacial strains resulting in intergrowths of novel lattice defects [1]. We apply these two concepts of...
Dr
Chun Shen
(McGill University)
14/06/2016, 17:15
Nuclear Physics / Physique nucléaire (DNP-DPN)
Oral (Student, Not in Competition) / Orale (Étudiant(e), pas dans la compétition)
Signatures associated with collective behaviour has been observed in the hadronic measurements of high multiplicity proton+lead collisions at the Large Hadron Collider (LHC), as well as in (proton, deuteron, helium-3)+gold collisions at the Relativistic Heavy-Ion Collider (RHIC). To better understand the evolution dynamics and the strongly-coupled properties of the matter created in these...
Dr
Craig Haley
(Honeywell Aerospace)
14/06/2016, 17:15
Oral (Non-Student) / orale (non-étudiant)
C. Haley1, D. Degenstein2, R. Cooney3, and A. Bourassa2
1 Honeywell Aerospace
2 University of Saskatchewan
3 Canadian Space Agency
The Canadian Atmospheric Tomography System (CATS) is a UV/visible/near-IR spectrometer designed to measure limb-scattered sunlight to derive vertically-resolved concentrations of O3, NO2, and BrO and aerosol extinction from the Upper Troposphere through the...
Mr
Matthew Stukel
(Queens University)
14/06/2016, 17:15
Particle Physics / Physique des particules (PPD)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
Enigmatic dark matter is responsible for 26% of the total mass-energy in the known
universe. Since 1997, the DAMA/LIBRA experiment has claimed to have the first direct evidence
for the observation of dark matter. One major source of background for this experiment is the
40K isotope. The chemical similarity between potassium and sodium is why trace amounts can
be found in the NaI...
Dr
Neil Rowlands
(Honeywell Aerospace)
14/06/2016, 17:30
Invited Speaker / Conférencier invité
Bio
Neil Rowlands obtained his B.Sc (Engineering Physics) from the University of Alberta in 1985 and his Ph.D. (Astronomy) from Cornell University in 1991. At Cornell, he participated in the construction and use of infrared instrumentation for the Kuiper Airborne Observatory and the 5m Hale telescope at Mt. Palomar. After post-doctoral fellowships at the Université de Montréal, and at the...
Garth Huber
(University of Regina)
14/06/2016, 17:30
Nuclear Physics / Physique nucléaire (DNP-DPN)
Oral (Non-Student) / orale (non-étudiant)
In Quantum Chromodynamics (QCD), the elastic form factor of the charged pion is unique in that it can be rigorously calculated perturbatively in the limit of
asymptotically large momentum transfer. However, the lack of a "free pion"
target makes experimental studies of this quantity challenging, and one must
make measurements using the virtual pion cloud of the nucleon via...
René Roy
(Université Laval)
14/06/2016, 17:45
Nuclear Physics / Physique nucléaire (DNP-DPN)
Oral (Non-Student) / orale (non-étudiant)
Heavy-ion collisions at intermediate energies generate emission sources with a large distribution of excitation energies that can reach up to 10 MeV per nucleon. Evaporation models based on Weisskopf and Hauser-Feshback theories are used to de-excite these sources. Parameters used in evaporation models come from low energy experiments and must be extrapolated to de-excite high excitation...
Christopher Pugh
(University of Waterloo)
14/06/2016, 19:00
Division of Atomic, Molecular and Optical Physics, Canada / Division de la physique atomique, moléculaire et photonique, Canada (DAMOPC-DPAMPC)
Poster (Student, In Competition) / Affiche (Étudiant(e), inscrit à la compétition)
In order to perform quantum key distribution (QKD) to a moving satellite, a fine pointing system is needed to ensure the collection of as many photons as possible. Since QKD only relies on the number of detected photons, any lost signal will not reduce security but will decrease the amount of key generated. A dedicated fine pointing system would help reduce the amount of photons that are lost...
Ms
Alexa Leblanc
(Chemistry Department, Laval University)
14/06/2016, 19:00
Instrumentation and Measurement Physics / Physique des instruments et mesures (DIMP-DPIM)
Poster (Student, In Competition) / Affiche (Étudiant(e), inscrit à la compétition)
A cloud point extraction procedure was developed to quantify the plutonium in environmental samples. This procedure uses a selective ligand within micelle which will complex with the element to be extracted. The extraction is effective in highly acidic solution with the addition of bromine in the system thereby forming a shield around the micelles. In this study, this procedure is used to...
Christopher Dydula
(Carleton University)
14/06/2016, 19:00
Physics in Medicine and Biology / Physique en médecine et en biologie (DPMB-DPMB)
Poster (Student, In Competition) / Affiche (Étudiant(e), inscrit à la compétition)
In medical x-ray imaging a major challenge is to obtain adequate soft tissue contrast. The goal of our research is to develop a high soft-tissue contrast x-ray technique based on the detection of low-angle scattered photons. Scattered photons comprise up to 90% of the radiation downstream of the patient and can provide information in addition to that of the transmitted primary x rays. In...
Mr
Gabriel Dupras
(University of Ottawa)
14/06/2016, 19:00
Plasma Physics / Physique des plasmas (DPP)
Poster (Student, Not in Competition) / Affiche (Étudiant(e), pas dans la compétition)
Propagation of high-power femtosecond laser pulses in transparent materials can lead to filamentation. Filamentation occurs due to the Kerr-focusing of the laser pulses in nonlinear medium. Plasma defocusing effect prevent the colapse of the laser pulse and the balance between Kerr nonlinearity and plasma defocusing leads to filamentation. For the first time, we observed multiple filamentation...
Mr
Alexandre Landry
(Université de Montréal)
14/06/2016, 19:00
Theoretical Physics / Physique théorique (DTP-DPT)
Poster (Student, In Competition) / Affiche (Étudiant(e), inscrit à la compétition)
Abstract
1. Introduction
2. ULTRA-COLD NEUTRONS IN A GRAVITATIONAL FIELD
3. GRAVITATIONAL PERTURBATION
4. NUMERICAL VALUES AND EXPERIMENTAL POSSIBILITIES
5. Conclusion
6. Acknowledgements
7. References
Barry Davids
(TRIUMF)
14/06/2016, 19:00
Nuclear Physics / Physique nucléaire (DNP-DPN)
Poster (Non-Student) / affiche (non-étudiant)
EMMA is a recoil mass spectrometer designed to separate the recoils of nuclear reactions from the beams that produce them. It is being installed in the ISAC-II experimental hall of TRIUMF, where it will be used with heavy radioactive ion beams accelerated to energies close to the Coulomb barrier on a variety of targets. An update on its installation will be given.
Christopher Charles
(University of Ottawa)
14/06/2016, 19:00
Industrial and Applied Physics / Physique industrielle et appliquée (DIAP-DPIA)
Poster (Non-Student) / affiche (non-étudiant)
Radiotoxic actinides including $^{236}$U, $^{239/240}$Pu, $^{241}$Am, and $^{244}$Cm are found in spent nuclear fuels and high-level radioactive waste. In particular $^{244}$Cm (half-life 18.1 y) is a useful tracer of exposure to radioactive materials, but dose assessments typically require measuring atto- to femtogram levels of curium in biological and environmental media. Accelerator mass...
Penka Matanska
(Carleton Univesity)
14/06/2016, 19:00
Physics Education / Enseignement de la physique (DPE-DEP)
Poster (Non-Student) / affiche (non-étudiant)
The all-optical manipulation of 1 to 4 µm latex spheres with a 20 mW He-Ne laser has been used to demonstrate the concepts of single beam optical trapping in the case when the particle size is comparable to the laser wavelength. Drag coefficient, particle diameter, laser beam waist and trap strength are some of the calculated parameters for the calibration of the optical trap. A CCD camera...
Frederick Dallaire
(Universite de Montreal (CA))
14/06/2016, 19:00
Particle Physics / Physique des particules (PPD)
Poster (Student, Not in Competition) / Affiche (Étudiant(e), pas dans la compétition)
A search is performed for the process $pp \to G^* \to B_H\bar b/\bar B_H b \to H b \bar b \to b\bar bb\bar b$, predicted in composite Higgs scenarios, where $G^*$ is a heavy colour octet vector resonance and $B_H$ a vector-like quark of charge $-1/3$. The data were obtained from $pp$ collisions at a centre-of-mass energy of 8 TeV corresponding to an integrated luminosity of $19.5 \text{...
Mark Stern
(McGill University)
14/06/2016, 19:00
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Poster (Student, Not in Competition) / Affiche (Étudiant(e), pas dans la compétition)
The crystallization of amorphous semiconductors is a strongly exothermic process. Once initiated, the release of latent heat can be sufficient to drive a self-sustaining crystallization front through the material in a manner that has been described as explosive. Using Dynamic Transmission Electron Microscope (DTEM), we have obtained time-resolved snap shots of three distinct microstructural...
Christopher Charles
(University of Ottawa)
14/06/2016, 19:02
Nuclear Physics / Physique nucléaire (DNP-DPN)
Poster (Non-Student) / affiche (non-étudiant)
Radiofrequency multipoles (RFM’s) are a promising new technology in accelerator mass spectrometry (AMS) for contributing to the removal of atomic and molecular isobars when combined with appropriate gases. The motion of charged particles in vacuo through the hyperbolic RFQ version are governed by the Mathieu functions for which convenient algebraic solutions exist for direct, continuous...
Xiaohe Zhang
(Queen's University)
14/06/2016, 19:02
Particle Physics / Physique des particules (PPD)
Poster (Non-Student) / affiche (non-étudiant)
A well shielded Cryogenic Underground TEst facility (CUTE) will be installed at SNOLAB with the goal to do performance tests, calibrations and background measurements with cryogenic dark matter detectors in support and preparation of the search for Weakly Interacting Massive Particles (WIMPs) with SuperCDMS at SNOLAB.
This facility will also offer the opportunity for the European...
Martin Connors
(Athabasca University)
14/06/2016, 19:02
Physics Education / Enseignement de la physique (DPE-DEP)
Poster (Non-Student) / affiche (non-étudiant)
Le projet AUTUMNX, soutenu par l’Agence Spatiale Canadienne (ASC), a installé une dixaine de magnétomètres haut de gamme au Québec. On y étudie le champs magnétique dû aux aurores boréales avec le but de mieux comprendre la magnétosphère et aussi de déterminer les effets de ses changements (loi de Faraday) sur le réseau électrique. Comme on travaille dans des communautés partout au Québec,...
Johnathan Burchill
(University of Calgary)
14/06/2016, 19:02
Atmospheric and Space Physics / Physique atmosphérique et de l'espace (DASP-DPAE)
Poster (Non-Student) / affiche (non-étudiant)
Development has commenced at the University of Calgary on a prototype next-generation ion imager called the Miniature Plasma Imager (MPI). The work is being performed under contract to the Canadian Space Agency as part of its Space Technology Development Program. The Miniature Plasma Imager is designed to be an smaller Thermal Ion Imager, which is the sensor used on the Swarm Electric Field...
Mr
Deok Hyun Jang
(Department of Physics, Ryerson University, Toronto, Ontario, Canada)
14/06/2016, 19:02
Physics in Medicine and Biology / Physique en médecine et en biologie (DPMB-DPMB)
Poster (Student, In Competition) / Affiche (Étudiant(e), inscrit à la compétition)
Dual-energy X-ray Absorptiometry (DXA) is currently the “gold standard” for measuring bone mineral density (BMD). Due to dependency of DXA on the atomic composition of bone, deposition of bone seeking elements that differ in atomic numbers from calcium (Ca, Z=20) can cause inaccurate estimation of BMD. One of the most notable elements of concern is strontium (Sr, Z=38), which is used to...
Dr
Oleg Kamaev
(Canadian Nuclear Laboratories)
14/06/2016, 19:02
Industrial and Applied Physics / Physique industrielle et appliquée (DIAP-DPIA)
Poster (Non-Student) / affiche (non-étudiant)
Muon Scattering Tomography (MST) exploits the naturally occurring flux of high energy cosmic ray muons at the surface of the Earth to non-destructively assay the distributions of dense materials in a region of interest. The Cosmic Ray Inspection and Passive Tomography (CRIPT) detector was designed and built for this application. CRIPT is a unique MST apparatus using extruded plastic...
Dr
Igor Ivanovic
(Carleton University)
14/06/2016, 19:02
Division of Atomic, Molecular and Optical Physics, Canada / Division de la physique atomique, moléculaire et photonique, Canada (DAMOPC-DPAMPC)
Poster (Non-Student) / affiche (non-étudiant)
**On a minimal set of separable measurements
for a pure state determination in a two-qubit system.**
I.D. Ivanovic, Department of Physics, Carleton University
In this note I will address the problem of minimum set of separable measurements necessary to determine a pure state of a two-qubit system. A set of measurements for a complete state determination...
Laurent René de Cotret
(McGill University)
14/06/2016, 19:02
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Poster (Student, Not in Competition) / Affiche (Étudiant(e), pas dans la compétition)
Vanadium dioxide is notable for exhibiting several low-temperature insulating phases and having a very well studied insulator-metal transition at ~68$^{\circ}C$ that is associated with a crystallographic change from monoclinic semiconductor to rutile metal. Using a combination of ultrafast electron diffraction (UED) and broadband spectroscopy, we have recently demonstrated that photoexcitation...
Prof.
Louis Marchildon
(Université du Québec à Trois-Rivières)
14/06/2016, 19:02
Theoretical Physics / Physique théorique (DTP-DPT)
Poster (Non-Student) / affiche (non-étudiant)
Sixty years ago, Hugh Everett III suggested that when a quantum observable is measured by an apparatus, all possible results of the measurement exist. Many different ways to understand this statement have later been proposed, which roughly fall under the headings of many worlds, many minds and decohering sectors of the wave function. Understanding multiplicity is, in my view, a pressing...
Mr
Anthony Tremblay
(Chemistry Department, Laval University)
14/06/2016, 19:02
Instrumentation and Measurement Physics / Physique des instruments et mesures (DIMP-DPIM)
Poster (Student, In Competition) / Affiche (Étudiant(e), inscrit à la compétition)
It can be challenging to measure the concentration of radionuclides using mass spectrometry when these concentrations are in the “parts per trillion” range. Yet, radionuclides can cause health problems even at these low concentrations, especially alpha-emitting radionuclides with a short half-life. This is why we are developing a methods to rapidly extract and pre-concentrate radionuclides at...
Mr
Edward Muzar
(Queen's University)
14/06/2016, 19:04
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Poster (Student, In Competition) / Affiche (Étudiant(e), inscrit à la compétition)
Surface acoustic waves (SAWs) on semiconductors, such as gallium arsenide (GaAs), are able to control quantum processes. SAW devices are augmented with phononic crystal waveguides to have fine control of the acoustic path. A phononic crystal in a GaAs substrate is produced by wet etching a square lattice array of void inclusions with an L1 defect. GaAs by its piezoelectricity, is suited for...
Mr
Kais Jooya
(University of British Columbia)
14/06/2016, 19:04
Instrumentation and Measurement Physics / Physique des instruments et mesures (DIMP-DPIM)
Poster (Student, In Competition) / Affiche (Étudiant(e), inscrit à la compétition)
Laser cooling and trapping of atoms has created a revolution in physics and technology. For example, the GPS network used for global navigation relies on cold atoms for time keeping. This poster will review the recent advances of our research program which is aimed at creating a cold-atom based primary pressure standard for the high-, and ultra-high vacuum regimes. Cold, trapped atoms can act...
Frédéric Girard
(Laurentian University)
14/06/2016, 19:04
Nuclear Physics / Physique nucléaire (DNP-DPN)
Poster (Student, Not in Competition) / Affiche (Étudiant(e), pas dans la compétition)
The PICO collaboration presently operates two bubbles chambers for the search of dark matter in the SNOLAB underground laboratory in Sudbury, Ontario. Multiple calibration chambers were created to understand the detectors’ behavior when exposed to different background radiation. The PICO 0.1 bubble chamber is used to perform neutron calibration at the Tandem Van de Graaff facility of the...
Mr
Alexandre Le Blanc
(Laurentian University)
14/06/2016, 19:04
Particle Physics / Physique des particules (PPD)
Poster (Student, In Competition) / Affiche (Étudiant(e), inscrit à la compétition)
The PICO experiment uses superheated liquid bubble chambers with different freons, presently $C_3F_8$, as the active fluid to search directly for dark matter. When a particle deposits energy in the active fluid, within a certain critical length, a local phase transition might occur if this energy is greater than a certain critical energy. This phase transition is explosive in nature and will...
Dr
Wladek Kedzierski
(University of Windsor)
14/06/2016, 19:04
Division of Atomic, Molecular and Optical Physics, Canada / Division de la physique atomique, moléculaire et photonique, Canada (DAMOPC-DPAMPC)
Poster (Non-Student) / affiche (non-étudiant)
Metastable particles produced in the interaction of electrons of carefully controlled energy with thermal gaseous target beams in a crossed beam set-up have been studied in the energy range from threshold to 300 eV. The e-beam is pulsed and the metastables produced drift to a solid nitrogen detector held at 10 K. Here they transfer their energy to states which radiate. The resultant photons...
Keith Ng
(University of Waterloo)
14/06/2016, 19:04
Theoretical Physics / Physique théorique (DTP-DPT)
Poster (Student, In Competition) / Affiche (Étudiant(e), inscrit à la compétition)
We show that a particle detector can distinguish the interior of a hollow shell from
at space for switching times much shorter than the light-crossing time of the shell, even though the local metrics are indistinguishable. This shows that a particle detector can read out information about the non-local structure of spacetime even when switched on for scales much shorter than the...
Michaël Smith
(Cégep de Rivière-du-Loup)
14/06/2016, 19:04
Physics in Medicine and Biology / Physique en médecine et en biologie (DPMB-DPMB)
Poster (Student, Not in Competition) / Affiche (Étudiant(e), pas dans la compétition)
Selon l'équation de la friction visqueuse, la force de friction entre deux surfaces séparées par une couche de fluide newtonien augmente proportionnellement avec la viscosité, l'aire de la surface de contact et la vitesse de déplacement relatif. La force de friction décroit avec l'épaisseur de la couche de fluide.
L'expérience présentée vise à vérifier facilement (et avec un matériel...
Mr
Guillaume Cote
(University of Ottawa)
14/06/2016, 19:06
Industrial and Applied Physics / Physique industrielle et appliquée (DIAP-DPIA)
Poster (Student, In Competition) / Affiche (Étudiant(e), inscrit à la compétition)
World mints compete year after year to produce new technologies that will revolutionize the field, increase revenue and make these new technologies unique and attractive to the Market place. New technologies developed in this project is to use nanoparticles and laser induced gratings to create fixed colors and holograms on metallic surfaces. The use of nanoparticles (NPs) as the colorizing...
Scott Newman
(Univeristy of Ottawa)
14/06/2016, 19:06
Division of Atomic, Molecular and Optical Physics, Canada / Division de la physique atomique, moléculaire et photonique, Canada (DAMOPC-DPAMPC)
Poster (Non-Student) / affiche (non-étudiant)
The dominant nonlinear effect within standard telecommunication fibers is stimulated Brillouin scattering (SBS). SBS can grow from a spontaneous process or it can be seeded for applications such as fiber amplifiers or fiber sensors. The spontaneous process occurs when a pump signal is scattered by thermal fluctuations within the fiber, resulting in a frequency downshifted Stokes signal. The...
Mr
Stephen Spencer
(Memorial University of Newfoundland)
14/06/2016, 19:06
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Poster (Student, In Competition) / Affiche (Étudiant(e), inscrit à la compétition)
Brillouin light scattering experiments were performed on lead scandium tantalate ceramics using a 180˚ backscattering geometry. Spectral peaks due to longitudinal bulk acoustic modes were observed and their frequencies were used to determine the corresponding phonon velocities and elastic constant c¬11. Temperature dependence of longitudinal bulk mode frequencies, and subsequently velocities,...
Brian Kootte
14/06/2016, 19:06
Nuclear Physics / Physique nucléaire (DNP-DPN)
Poster (Student, In Competition) / Affiche (Étudiant(e), inscrit à la compétition)
The masses of radioisotopes is a fundamental property which is critical to a number of fields of study, and Penning traps have proven to be an important tool in measuring these masses to high precision. The TITAN facility at TRIUMF has achieved many successes in this field including a successful measurement of the mass of 11Li, the shortest-lived nuclide to ever be measured in such a trap....
Martin Otto
(McGill University)
14/06/2016, 19:06
Instrumentation and Measurement Physics / Physique des instruments et mesures (DIMP-DPIM)
Poster (Student, Not in Competition) / Affiche (Étudiant(e), pas dans la compétition)
Ultrafast electron diffraction is a powerful table-top technique to characterize structural dynamics in condensed matter. We present an analysis of the phase stability of a 3 GHz radio-frequency electron pulse compression cavity. We implement low-noise microwave phase detection electronics to measure the slow drift (greater than 1 s) of the cavity resonance, allowing for continuous feedback...
Robert Mann
(University of Waterloo)
14/06/2016, 19:06
Theoretical Physics / Physique théorique (DTP-DPT)
Poster (Non-Student) / affiche (non-étudiant)
Black Hole Chemistry is a new perspective on black hole thermodynamics, one that indicates that once vacuum energy is taken into account, black holes behave more like chemical systems. As a consequence mass becomes chemical enthalpy, the notion of a thermodynamic volume appears, and black holes exhibit a broad range of chemical phenomena, including liquid/gas phase transitions similar to...
Frédéric Lirette
(Cégep de Rivière-du-Loup)
14/06/2016, 19:06
Physics in Medicine and Biology / Physique en médecine et en biologie (DPMB-DPMB)
Poster (Student, Not in Competition) / Affiche (Étudiant(e), pas dans la compétition)
Selon la loi de Poiseuille, le débit d'écoulement d'un fluide dans une conduite cylindrique est proportionnel au gradient de pression et au rayon de la conduite élevé à la puissance quatre. Il est aussi inversement proportionnel à la viscosité du fluide. La loi de Poiseuille fut d'abord établie en lien avec l'étude de l'écoulement du sang dans les veines et les artères.
L'expérience...
Frank(Tongan) Wu
(Simon Fraser University)
14/06/2016, 19:08
Nuclear Physics / Physique nucléaire (DNP-DPN)
Poster (Student, In Competition) / Affiche (Étudiant(e), inscrit à la compétition)
Alpha decay provides a powerful tool to study structure of heavy
nuclei with Z>83 (above Pb and Bi). When a gamma ray is emitted
following the alpha decay, the alpha-gamma angular correlation can be
used to assess the height of Coulomb and centrifugal barriers, which
determine the rate of the alpha-particle tunnelling. This correlation,
through the selection rules for the decays, can also...
Dylan Malenfant
(University of Windsor)
14/06/2016, 19:08
Physics in Medicine and Biology / Physique en médecine et en biologie (DPMB-DPMB)
Poster (Student, In Competition) / Affiche (Étudiant(e), inscrit à la compétition)
There is an urgent demand from many sectors (health, environmental safety, security, and food-processing) for a diagnostic test to rapidly and accurately identify bacterial pathogens. In recent years, it has been shown that laser-induced breakdown spectroscopy (LIBS) can provide a real-time bacterial cell elemental assay. On the basis of this assay, sensitive and specific discrimination...
Jonathon David White
(Yuan Ze University)
14/06/2016, 19:08
Industrial and Applied Physics / Physique industrielle et appliquée (DIAP-DPIA)
Poster (Non-Student) / affiche (non-étudiant)
Correlation is used to analyze the daily returns of pairs of unrelated stocks with similar ticker symbols. By encoding the relationship between two Chinese ticker symbols by three digits, we found that, in contrast to the developed Western markets, comovement of stocks with similar ticker symbols is relatively common in the Taiwanese market. When the last two characters are identical,...
Mr
Zachariah Barnard
(Laurentian University)
14/06/2016, 19:08
Particle Physics / Physique des particules (PPD)
Poster (Student, In Competition) / Affiche (Étudiant(e), inscrit à la compétition)
The SNO+ experiment is a large-scale liquid scintillator detector with a focus on investigating neutrinoless double beta decay. In order to fully calibrate the experiment, human access is required to within the detector region and therefore careful consideration is needed to prevent radon ingress from the mine air, a significant source of background. A cover gas system is being developed to...
Faïza Nebia
(Cégep du Vieux Montréal)
14/06/2016, 19:08
Theoretical Physics / Physique théorique (DTP-DPT)
Poster (Non-Student) / affiche (non-étudiant)
In this work, we study, using numerical -Monte Carlo- simulations, quantum properties of a gas of anyons with a topological-type interaction in finite three dimensional space-time. This model is an effective description of the Abelian Higgs model with the Chern-Simons theories. The effective anyon gas with topological-type interaction is already constructed and developped in the lattice in...
Ryan Bolen
(University of Ottawa)
14/06/2016, 19:08
Instrumentation and Measurement Physics / Physique des instruments et mesures (DIMP-DPIM)
Poster (Student, In Competition) / Affiche (Étudiant(e), inscrit à la compétition)
Caesium sputtered ion sources when used on solid graphite powdered samples have been thus far - capable of generating a peak negative (_6^12)C-beam current of around 200-400 µA (~〖10〗^15 ions/s). However, when using CO2 gas directly as the carbon source – less of the sample is lost during the graphitization process, which is of vital importance when one has a limited amount of the material...
Lauren Hayward Sierens
(University of Waterloo)
14/06/2016, 19:08
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Poster (Student, In Competition) / Affiche (Étudiant(e), inscrit à la compétition)
We present a theory that describes the pseudogap regime of the hole-doped cuprate superconductors by incorporating the competing effects of superconducting and charge density wave orders into six-dimensional degrees of freedom on a two-dimensional lattice [Science 343, 1336 (2014)]. Using Monte Carlo simulations, we calculate the charge order correlations and diamagnetic susceptibility [PRB...
Ralf Bruening
(Mount Allison University)
14/06/2016, 19:08
Surface Science / Science des surfaces (DSS)
Poster (Non-Student) / affiche (non-étudiant)
Copper films for applications in printed circuit boards usually have to be fine-grained to achieve even filling of microvias. When galvanically plating Cu films on roll-annealed Cu substrates, unacceptably large epitaxial crystals were found for certain conditions. Here galvanic Cu films were plated on oriented single-crystal Cu substrates from an additive-free electrolyte and from a...
Robert Mann
(University of Waterloo)
14/06/2016, 19:10
Theoretical Physics / Physique théorique (DTP-DPT)
Poster (Non-Student) / affiche (non-étudiant)
Quantum mechanics is often described as "weird" and "strange" because it abandons many of the intuitive traits of classical physics. Specifically, the notion that the world is objective, is deterministic, and exists independent of measurement are basic features of classical theory, but do not always hold up in quantum theory. I point out that these intuitive ideas are actually not genuine...
domenico bongiovanni
(INRS)
14/06/2016, 19:10
Division of Atomic, Molecular and Optical Physics, Canada / Division de la physique atomique, moléculaire et photonique, Canada (DAMOPC-DPAMPC)
Poster (Student, In Competition) / Affiche (Étudiant(e), inscrit à la compétition)
Over the last few years, Airy beams have attracted an increasing interest due to their peculiar characteristics, such as accelerating propagation trajectories featuring non-dispersion along with self-healing properties. Beside their relevance for fundamental optics research, these beams have found numerous applications in several fields including, among others, the generation of curved plasma...
Clarence Virtue
(Laurentian University)
14/06/2016, 19:10
Particle Physics / Physique des particules (PPD)
Poster (Non-Student) / affiche (non-étudiant)
Lead is an interesting target material for a supernova detector. The neutron excess in lead nuclei leads to Pauli-blocking of the charged-current $\overline{\nu_e}$ interaction, and the high atomic number of lead Coulomb enhances $\nu_e$ over $\overline{\nu_e}$ giving a large $\nu_e$ CC neutrino interaction cross-section. This leaves a lead-based SN detector dominantly sensitive to $\nu_e$...
Austin Nehring
14/06/2016, 19:10
Physics in Medicine and Biology / Physique en médecine et en biologie (DPMB-DPMB)
Poster (Student, Not in Competition) / Affiche (Étudiant(e), pas dans la compétition)
The aggregation of red blood cells into coin-like stacks called rouleaux is associated with a number of underlying causes including infections and diseases such as cancer.
Rouleaux formation occurs when the protein concentration in blood plasma is high. Hence, one possible cause for rouleaux formation is red blood cells clumping together due to depletion forces. In the case of several large...
Mrs
Aimee Gunther
(Institute for Quantum Computing, University of Waterloo)
14/06/2016, 19:12
Division of Atomic, Molecular and Optical Physics, Canada / Division de la physique atomique, moléculaire et photonique, Canada (DAMOPC-DPAMPC)
Poster (Student, In Competition) / Affiche (Étudiant(e), inscrit à la compétition)
In nonlinear spectroscopy, measuring weak nonlinear signals generated from feeble signal and probe fields in a nonlinear material can be quite difficult, especially with photosensitive materials. The field of quantum spectroscopy has long theorised applications of photon pairs from Spontaneous Parametric Down-Conversion sources for enhancing two-photon nonlinear spectroscopy through the...
Mr
Chao Zheng
(McMaster University)
14/06/2016, 19:12
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Poster (Student, In Competition) / Affiche (Étudiant(e), inscrit à la compétition)
Metal-trihalide perovskite is a new promising third generation active material for solar cell applications. The material is crystallized in a perovskite structure ABX3, where A is an organic cation (e.g. formamidinium), B is the metal cation (lead) and X is the halide anion (iodine). Perovskites exhibit the power conversion efficiency, which is comparable to silicon photovoltaic devices....
Nicolas Giasson
(Université Laval)
14/06/2016, 19:12
Theoretical Physics / Physique théorique (DTP-DPT)
Poster (Student, Not in Competition) / Affiche (Étudiant(e), pas dans la compétition)
The origin of neutrinos masses is one of the great mysteries of modern physic. As it turns out, the Standard Model of particle physics cannot account for massive neutrinos. They can only be described as massless Weyl spinors (left handed) due to symmetry constraints. On the other hand, experiments on neutrinos oscillations have provided strong evidence for a non-zero mass, which indicate the...
Benjamin MacPherson Barlow
(University of Ottawa)
14/06/2016, 19:12
Physics in Medicine and Biology / Physique en médecine et en biologie (DPMB-DPMB)
Poster (Student, In Competition) / Affiche (Étudiant(e), inscrit à la compétition)
The Atomic Force Microscope (AFM) lets us reach out and touch cells, on force and length scales native to them. But what *physically* happens when the AFM's tip touches a cell? The membrane is a first point of contact, and that is why we begin by studying vesicles —cell membranes laid bare. Using Coarse-Grained Molecular Dynamics simulations, we study the relaxation of uniaxially compressed...
Mr
Tian Ma
(Ecole Polytechnique de Montreal)
14/06/2016, 19:14
Division of Atomic, Molecular and Optical Physics, Canada / Division de la physique atomique, moléculaire et photonique, Canada (DAMOPC-DPAMPC)
Poster (Student, In Competition) / Affiche (Étudiant(e), inscrit à la compétition)
Novel hollow-core THz waveguides featuring hyperuniform disordered reflectors are proposed, fabricated, and characterized. Our main motivation is to explore the possibility of designing hollow core waveguides that feature spectrally broad bandgaps that are potentially superior to those attainable with purely periodic structures. Particularly, we demonstrated theoretically that using resin/air...
Christopher Pashartis
(McMaster)
14/06/2016, 19:14
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Poster (Student, In Competition) / Affiche (Étudiant(e), inscrit à la compétition)
We explore the band structures of new III-V material zinc blende alloys composed of B, N, Ga, As, In, Sb, and Bi for 1.55 μm wavelength telecommunication lasers and their corresponding electron localization at atomic sites from first principles. Engineering III-V semiconductors by mixing modifies their electronic properties including band gaps and lattice constants that are typically a blend...
Sean Wolfe
(Plasmionique Inc.)
14/06/2016, 19:14
Physics in Medicine and Biology / Physique en médecine et en biologie (DPMB-DPMB)
Poster (Non-Student) / affiche (non-étudiant)
Plasma-based processes are increasingly finding applications in a variety of fields, including biomaterial engineering and medicine. This proliferation, in part, is due to the fact that the plasma state of matter not only allows surface modifications with monoatomic layer precision, but also offers the opportunity of synthesizing new materials and nanostructures that could influence the cell...
Mathew Britton
(Joint Attosecond Science Laboratory, National Research Council and University of Ottawa, Ottawa, Canada),
Patrick Laferriere
(Joint Attosecond Science Laboratory, National Research Council and University of Ottawa, Ottawa, Canada)
14/06/2016, 19:16
Division of Atomic, Molecular and Optical Physics, Canada / Division de la physique atomique, moléculaire et photonique, Canada (DAMOPC-DPAMPC)
Poster (Student, Not in Competition) / Affiche (Étudiant(e), pas dans la compétition)
Lasing in the nitrogen molecular ion
Mathew Britton, Patrick Laferriere, Ladan Arissian, Michael Spanner and P. B. Corkum
Joint Attosecond Science Laboratory, National Research Council and University of Ottawa, Ottawa, Canada
Intense light-matter interaction beyond a unimolecular limit faces unique challenges. In this regime, light and matter both have a non-negligible effect on...
Valerio Faraoni
(Bishop's University)
14/06/2016, 19:16
Theoretical Physics / Physique théorique (DTP-DPT)
Poster (Non-Student) / affiche (non-étudiant)
We present a Paczynski-Wiita-like pseudo-Newtonian potential describing the orbits of particles in arbitrary static and spherically symmetric spacetimes, including black
hole solutions of alternative theories of gravity. This general prescription differs substantially from a previous one, showing that the association of pseudo-potentials with black hole spacetimes is not unique.
[Based...
Eamonn Campbell
(Trent University)
14/06/2016, 19:16
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Poster (Student, Not in Competition) / Affiche (Étudiant(e), pas dans la compétition)
Real-space renormalization group approach to the Anderson model
Many of the most interesting electronic behaviors currently being studied are associated with strong correlations. In addition, many of these materials are disordered either intrinsically or due to doping. Solving interacting systems exactly is extremely computationally expensive, and moreover approximate techniques developed...
Prof.
Tigran Galstian
(University Laval)
14/06/2016, 19:18
Physics in Medicine and Biology / Physique en médecine et en biologie (DPMB-DPMB)
Poster (Non-Student) / affiche (non-étudiant)
With the continued miniaturization of endoscopic imaging tools, the use of mechanical adaptation (focusing, etc.) becomes difficult. This is particularly true for the "mobile" or portable implants, including the freely behaving animals. In the current presentation we shall describe the concept of a motion less adaptive imaging on the example of a stationary (still large) system using liquid...
Todd Sierens
(Perimeter Institute)
14/06/2016, 19:18
Theoretical Physics / Physique théorique (DTP-DPT)
Poster (Student, In Competition) / Affiche (Étudiant(e), inscrit à la compétition)
In this talk we construct a self-consistent holographic model that is used to analyze the dynamical response functions for strongly interacting quantum critical systems described by conformal field theories (CFTs). A relevant scalar operator is incorporated in order to drive a quantum critical phase transition and we study the effect that our model parameters have on the finite temperature...
Parisa Zarkeshian
(University of Calgary)
14/06/2016, 19:18
Division of Atomic, Molecular and Optical Physics, Canada / Division de la physique atomique, moléculaire et photonique, Canada (DAMOPC-DPAMPC)
Poster (Student, In Competition) / Affiche (Étudiant(e), inscrit à la compétition)
Atomic frequency comb, an atomic ensemble with comb shaped optical transition, is useful for multimode photonic quantum memory where a photon is absorbed collectively over the teeth of the comb resulting in a multipartite entangled state. The teeth of the comb constitute the individual subsystems participating in the entanglement. Since each tooth of the comb consists of a macroscopic number...
Mrs
Khawla Elfied
(Memorial University of Newfoundland)
14/06/2016, 19:18
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Poster (Student, Not in Competition) / Affiche (Étudiant(e), pas dans la compétition)
We theoretically examined whether samarium hexaboride (SmB$_6$) is topological insulator, or not. Despite the fact that the SmB$_6$ has long been known as a topological Kondo insulator, with strong correlations and band hybridization, it is still of a great interest because of low-temperature transport anomalies which have recently been interpreted as evidence that SmB$_6 $ is a topological...
TJ Hammond
(University of Ottawa/NRC)
14/06/2016, 19:20
Division of Atomic, Molecular and Optical Physics, Canada / Division de la physique atomique, moléculaire et photonique, Canada (DAMOPC-DPAMPC)
Poster (Non-Student) / affiche (non-étudiant)
Attaining an isolated attosecond pulse via high harmonic generation requires a temporal gate that can act within one half cycle of the driving field. Here, we use the interplay of nonlinear optics and spatio-temporal coupling to synthesize a half-cycle pulse. The half cycle pulse is centered at 1.8 microns, the idler of an optical parametric amplifier, and is intense enough to generate...
Mr
Filip Simovic
(University of Waterloo)
14/06/2016, 19:20
Theoretical Physics / Physique théorique (DTP-DPT)
Poster (Student, In Competition) / Affiche (Étudiant(e), inscrit à la compétition)
The anti-de Sitter/conformal field theory correspondence and the membrane paradigm have illuminated many aspects of string and field theory, giving key insights into what a quantum theory of gravity might look like, while also providing tools to study a wide range of strongly coupled systems. In essence, these ideas are a statement of the holographic principle: a fundamental observation about...
Chloé Gauvin-Ndiaye
(Université de Sherbrooke)
14/06/2016, 19:20
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Poster (Student, Not in Competition) / Affiche (Étudiant(e), pas dans la compétition)
Topological insulators constitute a new class of material with an energy gap in the bulk and unusual metallic states on the surface. To date, most experiments have focused on probing the surface properties of these materials and suppressing the often inevitable contribution from bulk states. However, the bulk states in topological materials are of interest on their own and contain useful...
Philipp Karau
(University of Ottawa)
14/06/2016, 19:20
Physics in Medicine and Biology / Physique en médecine et en biologie (DPMB-DPMB)
Poster (Student, Not in Competition) / Affiche (Étudiant(e), pas dans la compétition)
Despite considerable technical progress in recent years, DNA sequencing is still a time and resource consuming procedure. Finding inexpensive, easy, and reliable alternative DNA sequencing strategies is a tall task. As recently demonstrated on biological pores, a promising approach to this challenge is the use of nanopores to characterize single strands of DNA. The advantages of nanopore...
Charlotte Froese Fischer
(NIST)
14/06/2016, 19:22
Division of Atomic, Molecular and Optical Physics, Canada / Division de la physique atomique, moléculaire et photonique, Canada (DAMOPC-DPAMPC)
Poster (Non-Student) / affiche (non-étudiant)
An experimental lifetime of exceptional accuracy [9.573(4)(5) (stat)(sys)] has been reported by Lapierre et al. [1] for the $2p$ $^2P_{3/2}$ state of Ar$^{13+}$. This result is in good agreement with theory [2] when neglecting the effect of the anomalous magnetic moment (AMM), namely 9.582(2) ms, whereas the lifetime with the AMM correction is 9.538(2) ms, well outside the experimental...
Thomas Gobeil
(University of Sherbrooke)
14/06/2016, 19:22
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Poster (Student, Not in Competition) / Affiche (Étudiant(e), pas dans la compétition)
We study the existence of stable topological quantum memory at finite temperature. This aids
in tackling the fundamental problematic of storing quantum information for macroscopically
significant times without the use of external intervention in the form of error correction. It
has been argued before that a gravitational attraction could confine the anyonic excitations in
a topological...
Mr
Zachary Roelen
(University of Ottawa)
14/06/2016, 19:22
Physics in Medicine and Biology / Physique en médecine et en biologie (DPMB-DPMB)
Poster (Student, Not in Competition) / Affiche (Étudiant(e), pas dans la compétition)
The last decade has seen significant advancements in nanofluidic devices to study transport processes at the single-molecule level. In particular, exciting results have been obtained through the study of passage of nucleic acids through solid-state nanopores (ssNP). ssNP are nanometer-sized holes in thin dielectric membranes, which have emerged as a versatile tool to investigate a wide range...
Aazad Abbas
(University of Ottawa - Quantum Photonics Group)
14/06/2016, 19:24
Division of Atomic, Molecular and Optical Physics, Canada / Division de la physique atomique, moléculaire et photonique, Canada (DAMOPC-DPAMPC)
Poster (Student, In Competition) / Affiche (Étudiant(e), inscrit à la compétition)
Conventional imaging systems are limited in their optical resolution by diffraction. Thus, super-resolution techniques are required to overcome this limit. Many super-resolution techniques, such as structured illumination (SIM) [1,2], have been developed. However, these techniques often take advantage of linear optical processes and only a few techniques applicable to nonlinear optical...
Martin Charron
(University of Ottawa)
14/06/2016, 19:24
Physics in Medicine and Biology / Physique en médecine et en biologie (DPMB-DPMB)
Poster (Student, Not in Competition) / Affiche (Étudiant(e), pas dans la compétition)
Nanopores have proven to be useful single-molecule sensing tools in the past two decades. One of the many promising applications of these electrical nano-sensors is to act as molecular counting devices with single-molecule sensitivity, essentially determining concentrations of specific molecular species. To achieve this, it is essential to develop a better understanding of the nanopore capture...
Bohdan Kulchytskyy
(University of Waterloo)
14/06/2016, 19:24
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Poster (Student, Not in Competition) / Affiche (Étudiant(e), pas dans la compétition)
The field of machine learning has been revolutionized by the recent improvements in the training of deep networks. Their architecture is based on a set of stacked layers of simpler modules. One of the most successful building blocks, known as a restricted Boltzmann machine, is an energetic model based on the classical Ising Hamiltonian. In our work, we investigate the benefits of quantum...
PENG LV
(UQTR)
14/06/2016, 19:26
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Poster (Student, Not in Competition) / Affiche (Étudiant(e), pas dans la compétition)
Hydrogen is considered to be a good candidate to replace oil as an energy vector for mobile and stationary applications. Presently, the main ways to store hydrogen are in the liquid form at very low temperature or in gaseous state in high pressure tanks. However, these two techniques have serious limitations due to the low temperature and high pressure involved. There is thus the need to...
Simon Axelrod
(Queen's University)
14/06/2016, 19:26
Division of Atomic, Molecular and Optical Physics, Canada / Division de la physique atomique, moléculaire et photonique, Canada (DAMOPC-DPAMPC)
Poster (Student, In Competition) / Affiche (Étudiant(e), inscrit à la compétition)
We study field and radiation attributes of photonic nano-resonators composed of alternating metal and dielectric layers, known as hyperbolic metamaterials (HMMs). HMMs offer the ability to confine light in ultra-small volumes and enhance its interaction with matter, thereby increasing the spontaneous emission rates of nearby photon emitters through the Purcell effect. It has been suggested...
Dr
Josef Daka
(Health Canada)
14/06/2016, 19:26
Physics in Medicine and Biology / Physique en médecine et en biologie (DPMB-DPMB)
Poster (Non-Student) / affiche (non-étudiant)
Patients who receive targeted radionuclide therapy (TRT) for cancer treatment suffer from damaging unwanted healthy body tissues and may receive unexpected dose to healthy organs as an inadvertent consequence of their treatment. In particular, they risk significant dose to critical and secondary organs, e.g. bone marrow, gonads, uterus etc., which may cause long- or short- term damage for...
Ms
Marie-Claude Dicaire
(University of Ottawa)
14/06/2016, 19:28
Division of Atomic, Molecular and Optical Physics, Canada / Division de la physique atomique, moléculaire et photonique, Canada (DAMOPC-DPAMPC)
Poster (Student, Not in Competition) / Affiche (Étudiant(e), pas dans la compétition)
Vortex beams form a class of beams carrying orbital angular momentum (OAM). A single photon carries lħ OAM where l represents the OAM state and a beam with non-zero OAM state has a zero intensity at its centre and a helical phase wavefront.
Vortex beams have gained interest for their applications in optical manipulation, optical communication and quantum information [1-3]. In...
Mr
Amol Kamble
(Queen Elizabeth Scholar, UQTR)
14/06/2016, 19:30
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Poster (Student, Not in Competition) / Affiche (Étudiant(e), pas dans la compétition)
Hydrogen is a promising renewable energy vector that could be used in chemistry or to produce electricity via a fuel cell. Hydrogen can be stored in various forms such as gaseous, liquid, and metal hydrides. Metal hydrides are particularly attractive because of their low operation pressure and high volumetric capacities. In this communication we report the effect of ball milling on the...
Mr
Abhishek Kumar Patel
(UQTR)
14/06/2016, 19:32
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Poster (Student, Not in Competition) / Affiche (Étudiant(e), pas dans la compétition)
Economic and environmental considerations are pushing the society to replace oil by renewable energies. In this perspective, hydrogen is considered to be a good candidate as an energy vector for mobile and stationary applications. The conventional ways to store hydrogen are in the liquid form at very low temperature or in gaseous state in high pressure tanks. However, these two techniques...
Ms
Viney Dixit
(UQTR)
14/06/2016, 19:34
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Poster (Student, Not in Competition) / Affiche (Étudiant(e), pas dans la compétition)
Hydrogen has attracted a permanent interest as a future energy carrier because of its high ignition power and pollution free nature. One problem facing the widespread of hydrogen as an energy carrier is storage. Presently the main ways to store hydrogen are in liquid form or as a high pressure gas. Both techniques have their drawbacks and new ways to store hydrogen at room temperature and low...
Dr
Gurinder Kaur Ahluwalia
(College of The North Atlantic), Dr
Mandeep Singh Bakshi
(Wlfred laurier University)
14/06/2016, 19:36
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Poster (Non-Student) / affiche (non-étudiant)
Mesoporous silica nanoparticles (MSNs) have attracted a lot of attention recently due to their versatile applications in biomedical field. The origin of this is related to the nature of nanometer size pores which create a huge surface area to harbor drug molecules and act as potential carriers in biological systems. The charged surface of MSNs is also highly instrumental in inviting the other...
Mr
Tyler Downey
(Memorial University of Newfoundland)
14/06/2016, 19:38
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Poster (Student, In Competition) / Affiche (Étudiant(e), inscrit à la compétition)
In this poster, we describe the results of our investigation into the relevance of skewness and kurtosis as measures of surface roughness. Two types of surfaces are computationally generated: abraded surfaces consisting of surface scratches, and corrugated surfaces, consisting of hemispherical features. It was found that abraded surfaces could be well described by the skewness and kurtosis,...
Ms
Mona Braim
(Memorial University)
14/06/2016, 19:40
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Poster (Student, In Competition) / Affiche (Étudiant(e), inscrit à la compétition)
The main objective of this work was to investigate the binding capabilities of the newly synthesized bimodal triazole-calix[4]arene functionalized microcantilevers towards selected heavy metals in aqueous solution. Gold-coated microcantilever sensors were first modified with a self-assembled monolayer of a calix[4]arene modified at both its upper- and lower-rims. Selected target metal ions...
Mr
Bassel Alkadour
(Department of Physics and Physical Oceanography, Memorial University)
14/06/2016, 19:42
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Poster (Non-Student) / affiche (non-étudiant)
Results from finite temperature stochastic LLG simulations of an atomistic core-shell model of $\gamma$-Fe$_2$O$_3$ spherical nanoparticles are presented. The radial surface anisotropy gives rise to a surface magnetisation with a Neel-like domain wall separating the magnetic poles. It is shown that the pinning of the domain wall by the oxygen anion sites plays an important role in the low...
ye li
(uwo)
14/06/2016, 19:44
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Poster (Student, Not in Competition) / Affiche (Étudiant(e), pas dans la compétition)
Strontium aluminate co-doped with europium and dysprosium [SrAl2O4(Eu2+,Dy3+)] is a popular long-lasting (~10 hrs) phosphor for security signs, medical diagnostics, and other applications. Although it has been 20 years since the discovery of persistent luminescence (PL) in SrAl2O4(Eu2+,Dy3+), the associated physical mechanism is still unclear. Electron spin resonance (ESR) is a powerful...
Susan Yee
14/06/2016, 19:46
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Poster (Student, Not in Competition) / Affiche (Étudiant(e), pas dans la compétition)
In $+$ Nb co-doped TiO$_2$ has been previously investigated and shown to display colossal permittivity ($\epsilon_1 >10^3$) for frequencies less than or equal to 1 MHz using impedance spectroscopy. In this work the lattice vibrational contribution to the low frequency dielectric function is studied in ceramic samples at the 0\%,5\%, and 10\% doping level using temperature-dependent...
chen wei
(Memorial University of Newfoundland)
14/06/2016, 19:48
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Poster (Student, Not in Competition) / Affiche (Étudiant(e), pas dans la compétition)
Pyrochlores have the chemical formula A$_2$B$_2$O$_7$ with A, B or both magnetic. It has corner-sharing tetrahedra in the structure, therefore, frustration phenomena naturally occurs in these systems. Because of the frustration, pyrochlore have many interesting properties, including the spin glass in Y$_2$Mo$_2$O$_7$, spin liquid in Tb$_2$Ti$_2$O$_7$, disordered spin ice in Ho$_2$Ti$_2$O$_7$,...
Mr
Thameur Hajlaoui
(INSTITUT NATIONAL DE LA RECHERCHE SCIENTIFIQUE (INRS))
14/06/2016, 19:50
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Poster (Student, In Competition) / Affiche (Étudiant(e), inscrit à la compétition)
The study of Ba2LnFeNb4O15 (TTB-Ln) bulk ceramics revealed that they have a tetragonal tungsten bronze crystal structure, are ferroelectric and that a magnetic phase of barium hexaferrite BaFe12O19 (BaFO) spontaneously forms within the TTB-Ln phase during the ceramic processing, resulting in a novel multiferroic composite material at room temperature.
Our goal is to investigate new...
Mr
Joyprokash Chakrabartty
(University of Quebec, INRS-EMT)
14/06/2016, 19:52
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Poster (Student, In Competition) / Affiche (Étudiant(e), inscrit à la compétition)
We report the four step ferroelectric polarization switching in BiFeO3(BFO)/SrRuO3 (SRO)/BiMnO3(BMO) heterostructure thin films. All crystalline films are grown on (100) oriented Niobium doped SrTiO3 (NSTO) single crystal substrates by pulsed laser deposition. We found a novel four step ferroelectric polarization switching dynamics that clearly differs from that of individual layers. The...
Denis Morris
(Unniversité de sherbrooke)
14/06/2016, 19:54
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Poster (Non-Student) / affiche (non-étudiant)
CONTENT
For this work, Si and SiGe nanowires (NWs) were grown in a hot-wall reduced pressure chemical vapor deposition system via the vapor-liquid-solid mechanism on both silicon and sapphire substrates using gold as a catalyst. These NW samples were characterized using optical-pump terahertz-probe (OPTP) transmission experiments. The influence of the experimental conditions on the...
John Malcolm
(University of Guelph)
14/06/2016, 19:56
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Poster (Student, In Competition) / Affiche (Étudiant(e), inscrit à la compétition)
The two-dimensional dice lattice is the pseudospin-1 analogue the pseudospin-1/2 Dirac material graphene. The dice-lattice low-energy excitation spectrum consists of the Dirac cone dispersion found also in graphene, with an additional dispersionless flat band intersecting the Dirac point. We present theoretical results for the electronic dynamical polarization function in the material. This...
Mr
Pedro Ponte
(University of Waterloo / Perimeter Institute)
14/06/2016, 19:58
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Poster (Student, Not in Competition) / Affiche (Étudiant(e), pas dans la compétition)
Generic ergodic quantum many-body systems under periodic driving, in the long-time limit, are described by an infinite temperature canonical ensemble. In the presence of disorder, heating can be prevented in a certain regime (e.g. high frequency), and many-body localized (MBL) systems are stable under periodic driving. The precise value of the transition has relied on exact diagonalization and...
Maureen Reedyk
(Brock University)
14/06/2016, 20:00
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Poster (Non-Student) / affiche (non-étudiant)
Cd$_2$Re$_2$O$_7$ is a pyrochlore superconductor with a transition temperature (T$_C$) near 2 K. The results of Raman scattering and far-infrared reflectance measurements will be presented. The temperature dependence of optical phonons has been investigated above and below T$_C$ via IR spectroscopy, and as a function of Oxygen and Cadmium isotope substitution in the normal state via Raman...
Ross Cheriton
(University of Ottawa)
14/06/2016, 20:02
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Poster (Student, In Competition) / Affiche (Étudiant(e), inscrit à la compétition)
The InGaN/GaN material system is a promising candidate for the growth of highly efficient solar cells. With direct nanowire growth on silicon, superior light trapping properties at low costs are possible. With the introduction of quantum well superlattices, intermediate states well below the bandgap of GaN enable the absorption of lower energy photons that would otherwise pass through the...
Prof.
Bozidar Mitrovic
(Department of Physics, Brock University)
15/06/2016, 08:30
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Invited Speaker / Conférencier invité
The magnitude and the temperature dependence of the superconducting order parameter $\Delta(T)$ of
single-crystals of Cd$_2$Re$_2$O$_7$ ($T_c$ = 1.02~K) was measured using point-contact
spectroscopy. In order to fit the conductance spectra and to extract the order parameter
at different temperatures we generalized
the Blonder-Tinkham-Klapwijk theory by including the self-energy of the...
David Pantalony
(Canada Science and Technology Museum)
15/06/2016, 08:30
History of Physics / Histoire de la physique (DHP)
Invited Speaker / Conférencier invité
Canada has a long history related to the history of the study and measurement of geomagnetism. In 1840, the observatory at Toronto was part of a world-wide network for magnetic measurements; in the 19th century, explorers and scientists were active in collecting magnetic data in field surveys throughout our territories; in the 20th century, Canadian scientists did pioneering oceanographic and...
Prof.
Nazir P. Kherani
(University of Toronto)
15/06/2016, 08:30
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Invited Speaker / Conférencier invité
Over the last couple of decades, the field of photovoltaics has experienced dramatic advances both scientifically and technologically. Critical elements playing into these advances have been the development of novel solar materials, innovative light trapping approaches, and innovative device integrations and enhancements. This talk will provide an introductory overview of the advances in...
Joany Manjarres
(York University (CA))
15/06/2016, 08:30
Particle Physics / Physique des particules (PPD)
Invited Speaker / Conférencier invité
After about two years of operation, the excellent performance of the LHC and the ATLAS
detector made possible, a number of important experimental results, including precision
test of the Standard Model and the discovery of a new scalar particle compatible with the Higgs boson. The ATLAS experiment has been enthusiastically analyzing the LHC data recorded a centre of mass energy of 8 TeV and...
Debra Wunch
(University of Toronto)
15/06/2016, 08:30
Atmospheric and Space Physics / Physique atmosphérique et de l'espace (DASP-DPAE)
Invited Speaker / Conférencier invité
The carbon cycle describes the flow of carbon, typically in the form of carbon dioxide, between the atmosphere, oceans and land. It is influenced by changes in the sources and sinks of carbon: from anthropogenic releases (fossil fuel burning), changes in land use, the respiration and photosynthesis of plants, and the uptake and release by oceans. Atmospheric measurements of carbon dioxide are...
Nicholas Scielzo
(Lawrence Livermore National Laboratory)
15/06/2016, 08:30
Nuclear Physics / Physique nucléaire (DNP-DPN)
Invited Speaker / Conférencier invité
Detailed studies of nuclear beta decay can provide stringent tests of the Standard Model of particle physics. In the beta decay of $^{8}$Li, the nucleus emits an electron and an antineutrino, and the daughter $^{8}$Be nucleus is left in an excited state which breaks up into two alpha particles. The angular correlations between these decay products are sensitive to any possible tensor...
Prof.
William Kieser
(Lalonde AMS Lab, Dept of Physics, uOttawa)
15/06/2016, 08:30
Instrumentation and Measurement Physics / Physique des instruments et mesures (DIMP-DPIM)
Oral (Non-Student) / orale (non-étudiant)
In Accelerator Mass Spectrometry (AMS), research into new analytical technologies, the development of new applications, as well as the improvement of existing techniques frequently requires extensive experimental time using ion sources and their associated low energy analytical equipment. To support our research and development program at the André E. Lalonde AMS Laboratory, we are completing...
Luc Beaulieu
(Université Laval)
15/06/2016, 08:30
Physics in Medicine and Biology / Physique en médecine et en biologie (DPMB-DPMB)
Invited Speaker / Conférencier invité
Radiation therapy is used in the treatment of almost 50% of all cancers in industrialized countries. Over the years, advances in engineering, computer technology, material sciences and biology has enabled medical physicists to devise more accurate radiation delivery systems. One of the oldest forms of radiation therapy is brachytherapy, or originally called Curiethérapie in honor of Marie...
Prof.
Jean-Michel Ménard
(University of Ottawa, Max Planck Institute for the Science of Light)
15/06/2016, 08:30
Division of Atomic, Molecular and Optical Physics, Canada / Division de la physique atomique, moléculaire et photonique, Canada (DAMOPC-DPAMPC)
Invited Speaker / Conférencier invité
Second-order solid-state nonlinear crystals are used for a wide variety of parametric frequency-conversion processes including the generation of second harmonic, degenerate entangled photon pairs and phase-locked terahertz transients. These crystals can have a high χ$^{(2)}$ coefficient enabling efficient nonlinear effects, but their spectral range of operation is limited because of their...
Jack Cornett
(University of Ottawa)
15/06/2016, 08:45
Instrumentation and Measurement Physics / Physique des instruments et mesures (DIMP-DPIM)
Oral (Non-Student) / orale (non-étudiant)
We developed a simple method to separate Pu and Am isotopes from the sample matrix using a single extraction chromatography column and to measure the concentrations of the isotopes by isotope dilution accelerator mass spectrometry (AMS). Pu and Am in the extraction chromatography column eluent were coprecipitated with NdF3 or Fe(OH)3 and the precipitates were analyzed by AMS at the University...
Prof.
Rowan Thomson
(Carleton University)
15/06/2016, 09:00
Physics in Medicine and Biology / Physique en médecine et en biologie (DPMB-DPMB)
Oral (Non-Student) / orale (non-étudiant)
Monte Carlo simulations are increasingly applied in medical physics to understand radiation interactions and energy deposition on sub-micron length scales within biological targets, e.g. DNA. These classical trajectory Monte Carlo simulations neglect the quantum wave nature of electrons, however, quantum effects may become non-negligible at sub-1 keV energies. In this work, quantum...
Prof.
Bill Atkinson
(Trent University)
15/06/2016, 09:00
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Oral (Non-Student) / orale (non-étudiant)
Charge ordered phases are now found in a wide range of underdoped cuprate high temperature superconductors. The relationship between these phases and nearby antiferromagnetic, superconducting, and pseudogap phases is not well established. However, the close proximity of the different phases suggests the possibility of nontrivial mixed states comprising multiple coexisting phases. In this...
René Roy
(Université Laval)
15/06/2016, 09:00
History of Physics / Histoire de la physique (DHP)
Invited Speaker / Conférencier invité
Il a fallu qu’un chimiste décide de ne plus enseigner la physique pour que les autorités de l’Université Laval acceptent d’engager un physicien de renom afin de fonder le département de physique. On est en 1939. C‘est Franco Rasetti qui est engagé ; il arrive en septembre 1939 et le département démarra l’année suivante. Le nouveau directeur met sur pied un réel programme de formation en...
Lyudmila Goncharova
(The University of Western Ontario)
15/06/2016, 09:00
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Oral (Non-Student) / orale (non-étudiant)
Si wires vertically grown by the vapor-liquid-solid (VLS) method have been frequently reported in literature, and has been considered as the long-standing symbolic image of this method. The efforts have been focused on studying the vertical Si wires-based solar cells in the last decades. In this study, the lateral or horizontal growth of Si wires recently reported by our group has been...
Prof.
Gordon Shepherd
(York University)
15/06/2016, 09:00
Atmospheric and Space Physics / Physique atmosphérique et de l'espace (DASP-DPAE)
Oral (Non-Student) / orale (non-étudiant)
The Canada/France WIND Imaging Interferometer (WINDII) made measurements from NASA’s Upper Atmosphere Research Satellite from 1991 to 2003. The observations were of upper atmospheric winds in the altitude range 80 to 300 km from Doppler shifts of the visible region emissions from a number of species. Altogether the atomic oxygen O(1S) 557.7 nm and O(1D) 630.0 nm emissions along with lines in...
Jarno Nicolaas van der Kolk
(University of Ottawa)
15/06/2016, 09:00
Division of Atomic, Molecular and Optical Physics, Canada / Division de la physique atomique, moléculaire et photonique, Canada (DAMOPC-DPAMPC)
Oral (Student, Not in Competition) / Orale (Étudiant(e), pas dans la compétition)
Collagen fibrils can be found in a wide array of biological tissues such as bones, tendons, arteries, cornea. They give most of the biological tissues its mechanical properties and as such are an important area of research. Second Harmonic Generation (SHG) is a non-linear optical process that is particularly strong in collagen fibrils due to their unique chiral molecular structure, enabling...
Laurelle Maria Veloce
(University of Toronto (CA))
15/06/2016, 09:00
Particle Physics / Physique des particules (PPD)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
The Phase-II upgrade of the Large Hadron Collider (HL-LHC) will increase the luminosity of the machine by a factor of 10, providing an additional integrated luminosity of 3000 fb-1 over the course of 10 years. The present ATLAS inner detector must therefore be completely replaced in order to cope with the high pileup and radiation environment of the HL-LHC. The new all-silicon tracker (ITk)...
Mukut Kalita
(Triumf)
15/06/2016, 09:00
Nuclear Physics / Physique nucléaire (DNP-DPN)
Invited Speaker / Conférencier invité
The observation of a permanent electric dipole moment (EDM) in a non-degenerate system would indicate violation of time reversal symmetry (T violation) or, equivalently, C(charge)P(parity) violation due to the CPT theorem. The diamagnetic Ra-225 atom is a favorable system in the search for a permanent EDM. This is because the experimental sensitivity to CP violation in radium is enhanced due...
Ms
Pamela Wee
(Agilent Technologies Canada Inc)
15/06/2016, 09:00
Instrumentation and Measurement Physics / Physique des instruments et mesures (DIMP-DPIM)
Oral (Non-Student) / orale (non-étudiant)
This paper summarizes the accomplishments-to-date of the Agilent 8800 ICP-MS/MS in the direct determination of the radionuclides, 90Sr+, 129I+, 137Cs+, 238Pu+, 239Pu+, and 236U+/238U+ ratios by tandem mass spectrometry with chemical resolution using gas-phase ion chemistry.
The ICP-MS/MS configuration consists of a collision reaction cell (CRC) between two quadrupole mass filters, Q1 and...
Stephen Weber
(Carleton University (CA))
15/06/2016, 09:15
Particle Physics / Physique des particules (PPD)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
The muon detector subsystem known as the small wheel of the ATLAS experiment will be completely replaced during the long shut down of the LHC starting in 2019. The replacement New Small Wheel (NSW) will have 16 sensitive layers, these layers are comprised of 2 different detector technologies: 2 quadruplet layers of small-strip Thin Gap Chambers (sTGC) and 2 quadruplet layers of MicroMegas...
Xiaolei Zhao
(University of Ottawa)
15/06/2016, 09:15
Instrumentation and Measurement Physics / Physique des instruments et mesures (DIMP-DPIM)
Oral (Non-Student) / orale (non-étudiant)
The use of 41Ca as a sensitive long-period tracer for osteoporosis diagnoses is made possible by accelerator mass spectrometry (AMS), with which CaF3- ions are produced and the resulting MeV positive 41Ca ions are counted. When the ion energy is sufficiently high, 41Ca and its interfering isobar 41K can be well separated by their dE/dx differences in the final ionization detector. Such...
Mr
Hamid Moradi
(Dept. of Physics, Carleton University)
15/06/2016, 09:15
Physics in Medicine and Biology / Physique en médecine et en biologie (DPMB-DPMB)
Oral (Student, Not in Competition) / Orale (Étudiant(e), pas dans la compétition)
The development of a radiosensitivity predictive assay is an attractive goal in radiation oncology. Since there is a high degree of inter-patient variability in the inherent sensitivity or resistance to therapy, it is crucial to have the ability to identify molecular markers that correlate with sensitivity or resistance to radiation treatment. We have applied Raman micro-spectroscopy (RMS) in...
isil ozfidan
(University of Alberta)
15/06/2016, 09:15
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Oral (Non-Student) / orale (non-étudiant)
Recent angle-resolved photoemission experiments have observed a proximity-induced superconducting gap in the helical surface states of the 3D topological insulator Bi$_2$Se$_3$, when a thin film of the latter is grown on a superconducting NbSe$_2$ substrate. The superconducting coherence peaks are strongly suppressed when the topological insulator thin film is doped with magnetic Mn...
ye li
(uwo)
15/06/2016, 09:15
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
Energy demand from the electrical grid is substantially higher during evening times when solar panels cannot contribute to electrical power generation. The fact that solar cells only produce energy during daytime necessitates their costly integration with expensive storage components. At the present cost levels, even a solar panel operating at the theoretical maximum of 70% power conversion...
Xinru Cheng
(University of Ottawa)
15/06/2016, 09:15
Division of Atomic, Molecular and Optical Physics, Canada / Division de la physique atomique, moléculaire et photonique, Canada (DAMOPC-DPAMPC)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
Due to its inherent stability and compactness, integrated photonics can allow for experimental complexity not currently achievable with bulk optics. This opens up the possibility for large-scale quantum technological applications, such as quantum communication networks and quantum information processing. Most demonstrations so far have featured the on-chip manipulation of photon states using a...
Prof.
Aldona Wiacek
(Saint Mary's University)
15/06/2016, 09:15
Atmospheric and Space Physics / Physique atmosphérique et de l'espace (DASP-DPAE)
Oral (Non-Student) / orale (non-étudiant)
As part of a new research program dedicated to understanding atmospheric composition, we have initiated measurements of marine boundary layer trace gases using the technique of Open-Path Fourier Transform Infrared Spectroscopy (OP-FTIR) deployed in monostatic mode (collocated source and detector) in 2015. The recently acquired system significantly expands the measurement capability of...
Mr
Yang Hu
(Department of Chemistry, University of Waterloo)
15/06/2016, 09:30
Physics in Medicine and Biology / Physique en médecine et en biologie (DPMB-DPMB)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
Photodynamic therapy (PDT) is emerging as a novel clinical approach that uses light (including laser sources) and photoactivatable compounds (photosensitizers) for the treatment of various tumors and other non-malignant conditions. PDT has potential advantages over surgery and other therapies, being minimally invasive, with accurate targeting and few side effects. However, most clinical PDT...
Mr
Sanyasi Rao Bobbara
(Department of Physics, Engineering Physics & Astronomy, Queen's University, ON, Canada)
15/06/2016, 09:30
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
Organic semiconductors have garnered a lot of interest in the recent years owing to their easy processibility, tunability to required optical and electrical properties, and of course to their cost-effectiveness. Their use in the organic light-emitting diodes and photovoltaics is already quite promising. However, the charge mobility in these materials is strongly affected by their structural...
Christopher DiLoreto
(University of Windsor)
15/06/2016, 09:30
Division of Atomic, Molecular and Optical Physics, Canada / Division de la physique atomique, moléculaire et photonique, Canada (DAMOPC-DPAMPC)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
The use of nanoscale structures to enhance local electric fields has seen much recent use in improving the effectiveness of numerous, optically-driven systems. As such, we investigate how these nanoscale enhancements can be used to improve the operation of quantum control systems. These nanoscale systems have various different effects on quantum systems, but in most cases are able to...
Ewan Chin Hill
(University of Victoria (CA))
15/06/2016, 09:30
Particle Physics / Physique des particules (PPD)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
A search for direct pair production of the supersymmetric partner of the top quark in events with two tau leptons has been performed using proton-proton collision data. The 20 fb$^{-1}$ of $\sqrt{s}=8$ TeV data were collected in 2012 by the ATLAS experiment at the LHC. The search is optimised for a model where both top squarks decay via a scalar tau to a nearly massless gravitino. No...
Prof.
Dominic Lariviere
(Chemistry Department, Laval University)
15/06/2016, 09:30
Instrumentation and Measurement Physics / Physique des instruments et mesures (DIMP-DPIM)
Oral (Non-Student) / orale (non-étudiant)
In this work, a technological development to determine the age of radioactive strontium sources through the [Zr-90]/[Sr-90] ratio using mass spectrometry and liquid scintillation to quantify both isotopes is presented. Because Sr-90 and Zr-90 are isobaric interferences in mass spectrometry, a radiochemical separation to isolate Zr-90 has been shown to be mandatory prior to analysis. Four...
Mrs
Amany Raslan
(Trent University)
15/06/2016, 09:30
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
In recent years, the two dimensional electron gases ($2$DEG) that form at some oxide interfaces have attracted worldwide attention due to their fascinating properties such as
conductivity, superconductivity, and magnetic order.
Here, we build a theoretical model for exploring the electronic properties of the $2$DEG at LaAlO$_3$/SrTiO$_3$ interfaces considering the strong dependence of...
Larry Lee
(TRIUMF)
15/06/2016, 09:30
Nuclear Physics / Physique nucléaire (DNP-DPN)
Oral (Non-Student) / orale (non-étudiant)
Construction of an Ultra-Cold Neutron (UCN) facility is nearing
completion in the TRIUMF Meson Hall. The new 500 MeV proton
beamline (BL1U) and neutron spallation target, which feeds the
superthermal UCN source, will be completed and transition over
to the commissioning phase in Spring 2016. As well, the front
end of the UCN source will be installed and also undergoing
commissioning...
Sophie Tran
(Department of Physics, University of Toronto, Toronto, ON, Canada)
15/06/2016, 09:30
Atmospheric and Space Physics / Physique atmosphérique et de l'espace (DASP-DPAE)
Oral (Non-Student) / orale (non-étudiant)
The High Arctic experiences prolonged periods of total darkness in the winter and continuous daylight in the summer, influencing the atmosphere and its composition in ways that are still not fully understood. Conducting atmospheric measurements in this remote region is challenging, particularly during polar night when solar-viewing instruments are not operational. By using infrared emission...
Dr
Tatsuya Kikawa
(TRIUMF)
15/06/2016, 09:45
Nuclear Physics / Physique nucléaire (DNP-DPN)
Oral (Non-Student) / orale (non-étudiant)
Our final goal is the measurement of the neutron electric dipole moment with ultracold neutrons (UCN). A new proton beamline for the UCN experiment was recently constructed at TRIUMF. UCNs will be produced by the superfluid He-II UCN source shipped from Japan. For the beam operation, sufficient radiation shields are necessary. We optimized the design of the shields and the layout of the UCN...
Marianna Shepherd
(York University, Lassonde School of Engineering)
15/06/2016, 09:45
Atmospheric and Space Physics / Physique atmosphérique et de l'espace (DASP-DPAE)
Oral (Non-Student) / orale (non-étudiant)
Manifestations of thermospheric dynamics have been observed in the variations of the upper atmosphere density, temperature, neutral winds and F-region plasma over a wide time range. These fields are influenced by perturbations propagating vertically from the lower and middle atmosphere (e.g. tides) and from above through variations in the solar and geomagnetic activity. The Wind Imaging...
Paul Mikula
(University of Manitoba)
15/06/2016, 09:45
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
The Ginzburg-Landau model for superconductivity provides a phenomenological description of superconductors near the critical temperature where a phase transition between superconducting and regular states occurs. The model has a single dimensionless free parameter, $\kappa$, that has a critical value separating type I and type II superconductors. Of particular interest are the vortex solutions...
Mr
Frédéric Bouchard
(University of Ottawa)
15/06/2016, 09:45
Division of Atomic, Molecular and Optical Physics, Canada / Division de la physique atomique, moléculaire et photonique, Canada (DAMOPC-DPAMPC)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
Optimal quantum cloning machines are realized in linear optical systems by means of the symmetrization method, a method involving the two-photon interference effect at a beam splitter. Optimal quantum cloning has been realized with two-dimensional quantum states, qubits, and four-dimensional quantum system comprised of polarization and orbital angular momentum qubits. Nonetheless, no...
Mohammad Reza Aziziyan
(Université de Sherbrooke)
15/06/2016, 09:45
Physics in Medicine and Biology / Physique en médecine et en biologie (DPMB-DPMB)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
Photonic biosensors based on photocorrosion of GaAs/AlGaAs nano-heterostructures have been investigated as an attractive platform for low-cost and rapid detection of bacteria in aqueous environments.1, 2 Both GaAs and Al0.35Ga0.65As layers are unstable in an aqueous surrounding when illuminated with photons of energy exceeding bandgap of either of these materials. Among elements released to a...
Ayse Turak
(McMaster University)
15/06/2016, 09:45
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Invited Speaker / Conférencier invité
After efficiency, lifetime is the second most important parameter for molecular photovoltaic devices. In organic solar cells (OPVs), heterojunctions play a defining in device stability. They also control the major processes: charge separation relies on effective organic/organic interfaces; charge transport is critically determined by the structure of the thin film, controlled by the...
Louis-Guillaume Gagnon
(Universite de Montreal (CA))
15/06/2016, 09:45
Particle Physics / Physique des particules (PPD)
Oral (Student, Not in Competition) / Orale (Étudiant(e), pas dans la compétition)
Supersymmetry, a generalisation of the space-time symmetries which
associates a new boson to each Standard Model fermion and vice-versa,
must be obervable near the weak scale in order to solve the hierarchy
problem. If the lepton and baryon numbers are conserved, the lightest
supersymmetric particle is stable and interacts only weakly providing
a viable dark matter candidate. Searches for...
Ms
Marie-Eve Lecavalier
(Chemistry department, Laval university)
15/06/2016, 09:45
Instrumentation and Measurement Physics / Physique des instruments et mesures (DIMP-DPIM)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
The understanding of the health impact of low dose exposition to ionizing radiation is one of the scientific challenges of this century. To insure a proper assessment of the exposition to radioactivity, different methods of detection have been investigated. One of the most common detection methods is liquid scintillation counting, which convert the radiation energy into a light signal with the...
Ben Keeshan
(Carleton University)
15/06/2016, 10:00
Particle Physics / Physique des particules (PPD)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
We study the effects of custodial symmetry violation in the most general scalar potential of the Georgi-Machacek model (GM). The GM model, which adds isospin triplet scalars to the Standard Model, preserves SU(2) custodial symmetry at tree level by imposing a global SU(2)$_L\times$SU(2)$_R$ symmetry and produces a degenerate fiveplet, a degenerate triplet and two singlet states. Custodial...
Mr
Guillaume Blanchet-Chouinard
(Chemistry department, Laval University)
15/06/2016, 10:00
Instrumentation and Measurement Physics / Physique des instruments et mesures (DIMP-DPIM)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
Isotopes such as Sr-90, Cs-137 Pb-210 and Po-210 are often the most important contributors to human radiation exposure due to their short half-life. The radiotoxicity of Pb-210 originates from its relatively long half-life compared with time of fulfillment of environmental processes and the high energy associated with the decay of its progeny, such as Po-210.[1] For these reasons, Pb-210 has...
Richard Marchand
(University of Alberta)
15/06/2016, 10:00
Atmospheric and Space Physics / Physique atmosphérique et de l'espace (DASP-DPAE)
Oral (Non-Student) / orale (non-étudiant)
CHAMP (CHAllenging Minisatellite Payload), a low Earth orbit minisatellite launched by the German Space Agency (DLR), was operated between July 2000 and September 2010. Its primary mission was to provide high accuracy measurements of Earth gravity and magnetic fields, but it was also equipped with other instruments to monitor its near ionospheric environment, including a large area planar...
Qinrong Zhang
(University of Waterloo)
15/06/2016, 10:00
Physics in Medicine and Biology / Physique en médecine et en biologie (DPMB-DPMB)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
Cisplatin is a very widely used platinum-based chemotherapy drug and is the cornerstone agent in treating a variety of cancers, including ovarian cancer, testicular cancer, cervical cancer, bladder cancer, lung cancer, head and neck cancer, lymphoma, and brain tumors. It is one of the few curative anticancer agents. However, its clinical application is often limited by severe toxic side...
Graeme Luke
(McMaster University)
15/06/2016, 10:00
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Invited Speaker / Conférencier invité
There has been a resurgence of interest in superconductivity since the discovery of high temperature superconductivity in the cuprates. As a result, a variety of new superconductors with high transition temperatures and other interesting properties have been discovered. The muon spin rotation/relaxation ($\mu$SR) technique is an extremely sensitive probe of magnetic fields in materials and...
Dr
Antonino Calà Lesina
(University of Ottawa, Department of Physics)
15/06/2016, 10:00
Division of Atomic, Molecular and Optical Physics, Canada / Division de la physique atomique, moléculaire et photonique, Canada (DAMOPC-DPAMPC)
Oral (Non-Student) / orale (non-étudiant)
Plasmonic nanostructures have been extensively investigated in recent years for their ability to concentrate light to sub-wavelength scales. Plasmonics allows us to overcome the diffraction limit and confine an intense field to spatial dimensions that are not achievable with a laser or dielectrics, which are typically used in nonlinear optics. The strong fields created by arrays of...
Torben Ferber
(University Of British Columbia)
15/06/2016, 10:00
Particle Physics / Physique des particules (PPD)
Invited Speaker / Conférencier invité
The next-generation B-factory Belle II at the upgraded KEKB accelerator, SuperKEKB, is aiming to start physics data taking in 2018. It is an asymmetric e+e- collider that will operate with 40x the instantaneous luminosity of KEKB/Belle. The broad physics program will cover physics with B and D mesons, muon and tau leptons as well as measurements using the method of radiative returns and direct...
Ms
Claire Dalencourt
(Chemistry Department, Laval University)
15/06/2016, 10:15
Instrumentation and Measurement Physics / Physique des instruments et mesures (DIMP-DPIM)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
Easily determine the radioactive behavior of a sample becomes one of the challenge of the industrialized world. Due to the enhancement of nuclear and mining activities, it is relevant to quantify the radioactivity effect of these activities and especially for nuclear disaster such as Fukushima within a short time. It currently exists a lot of method to analyse the most impact radionuclides of...
Zhengyan Li
(JASLab, National Research Council and University of Ottawa)
15/06/2016, 10:15
Division of Atomic, Molecular and Optical Physics, Canada / Division de la physique atomique, moléculaire et photonique, Canada (DAMOPC-DPAMPC)
Oral (Non-Student) / orale (non-étudiant)
High harmonic generation is a non-perturbative nonlinear optical process [1], quite different from conventional perturbative nonlinear optics [2]. These two regimes are bridged by the nonlinear wave mixing process in high harmonic generation [3], in which a harmonic extreme ultraviolet (XUV) photon with frequency Ω is a combination of n1 driving photons with frequency ω1 and n2 perturbing...
Sebastian Himbert
(Mcmaster University)
15/06/2016, 10:15
Physics in Medicine and Biology / Physique en médecine et en biologie (DPMB-DPMB)
Oral (Student, Not in Competition) / Orale (Étudiant(e), pas dans la compétition)
The preparation of Red Blood Cell (RBC) Ghosts is a well-known protocol in biological and medical research. It describes the extraction of the membranes from RBCs. Another well-known protocol is the preparation of highly ordered stacks of artificial lipid bilayers on silicon wafers. This technique is useful for analyzing the molecular structure and dynamical properties of these bilayers via...
Prof.
Jean-Michel Ménard
(University of Ottawa, University of Regensburg)
15/06/2016, 10:15
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Oral (Non-Student) / orale (non-étudiant)
Spontaneously broken symmetries in solids often result from many-body interactions that fall outside the scope of conventional solid-state models. As a consequence, some of the most fascinating phase transitions such as stripe formation, unconventional superconductivity or colossal magnetoresistance are still not fully understood. Time-resolved multi-terahertz spectroscopy is an ideal optical...
Mr
Paul Smith
(University of Saskatchewan)
15/06/2016, 10:15
Particle Physics / Physique des particules (PPD)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
The existence of unexpected states (states not predicted by the conventional quark model) in heavy Quarkonia, specifically Charmonium and Bottomonium like states, is of great interest to modern particle physics. States like X(3872), \(Y_{b}\)(10890), \(Z^{\pm}_{b}\)(10610), and \(Z^{\pm}_{b}\)(10650) have proven difficult to reconcile with the conventional quark model. However, analysis of...
Carlos Silva
(Université de Montréal)
15/06/2016, 11:00
Herzberg Public, Plenary, and Medal Talks / Conférenciers des sessions Herzberg, plénières et médaillés (CAP-ACP)
Invited Speaker / Conférencier invité
This presentation will summarise a body of work emanating from our research group over the past five years. It focuses on correlating the properties of excitons with the complex solid-state microstructure in macromolecular semiconductors. In general, the optical properties of polymeric semiconductors are governed fundamentally by the interplay of electronic interactions occurring within a...
Prof.
Gilles Fontaine
(Université de Montréal)
15/06/2016, 11:30
Herzberg Public, Plenary, and Medal Talks / Conférenciers des sessions Herzberg, plénières et médaillés (CAP-ACP)
Invited Speaker / Conférencier invité
Have stars that end up as isolated white dwarfs lost their initial angular momentum as suggested by the relatively long rotation periods measured at their surfaces through spectroscopy? Could it be instead that a large fraction of that angular momentum is bound in a fast rotating core, hidden from direct observations, as proposed by some theories favouring a weak rotational coupling between...
james Drummond
(Dalhousie University)
15/06/2016, 13:15
Atmospheric and Space Physics / Physique atmosphérique et de l'espace (DASP-DPAE)
Invited Speaker / Conférencier invité
18th December, 1999, February 20th, 2001 and 12th August, 2003 marked the launch dates of three Canadian atmospheric experiments: MOPITT, Odin/OSIRIS and SciSat/ACE. These three satellites, launched in the space of less than four years share another enviable characteristic: They are all still working after 13-16 years and between them they have accumulated over 45 years of on-orbit operating...
Prof.
Alexander Moewes
(University of Saskatchewan)
15/06/2016, 13:15
Surface Science / Science des surfaces (DSS)
Invited Speaker / Conférencier invité
2012 brought the first reports of a new member of the 2D material family: a hexagonal honeycomb of Si atoms deposited on the Ag(111) surface called “silicene”[1]. The characteristics and stability of freestanding silicene had previously been theoretically explored [2], and there was a strong push to determine if the epitaxial sheets possessed the promising qualities of their hypothetical...
Prof.
Francis Lin
(University of Manitoba)
15/06/2016, 13:15
Physics in Medicine and Biology / Physique en médecine et en biologie (DPMB-DPMB)
Oral (Non-Student) / orale (non-étudiant)
Directed cell migration is a complex cellular function that critically mediates a broad range of physiological and pathological processes. Chemical concentration gradient and electric field are two important guidance cues for many cell types such as immune cells, metastatic cancer cells, adult stem cells and neurons. Microfluidic devices can precisely configure cellular microenvironments and...
Thomas McElroy
(University of Alberta)
15/06/2016, 13:15
Particle Physics / Physique des particules (PPD)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
DEAP-3600, comprised of a 1 tonne fiducial mass of ultra-pure liquid argon, is designed to achieve world-leading sensitivity for spin-independent dark matter interactions. DEAP-3600 uses an array of photomultiplier tubes (PMTs) to measure the time distribution of scintillation light arising from the de-excitation of argon dimers. This measurement allows background events from Ar-39 decays to...
Blair Jamieson
(University of Winnipeg)
15/06/2016, 13:15
Particle Physics / Physique des particules (PPD)
Invited Speaker / Conférencier invité
T2K is a accelerator-based neutrino oscillation experiment operating in Japan, sending a muon (anti)neutrino beam produced at J-PARC to the Super-Kamiokande detector 295 km away. The neutrino oscillation process along the way, which results in some fraction of these muon neutrinos being detected as neutrinos of different flavors. T2K has reached several important milestones recently, including...
Joanne O'Meara
(University of Guelph)
15/06/2016, 13:15
Physics Education / Enseignement de la physique (DPE-DEP)
Invited Speaker / Conférencier invité
Over the past decade we have made many changes to our undergraduate physics offerings, both for majors and non-majors alike. Throughout this process our goal has been to implement best practices from the Physics Education Research community, in such a way that we are mindful of resource implications. I will highlight some of the more significant changes we have made, such as designing and...
Vedran Jelic
(University of Alberta)
15/06/2016, 13:15
Division of Atomic, Molecular and Optical Physics, Canada / Division de la physique atomique, moléculaire et photonique, Canada (DAMOPC-DPAMPC)
Invited Speaker / Conférencier invité
The terahertz scanning tunneling microscope (THz-STM) is a new system for ultrafast imaging of surfaces at the nanoscale. Previous experiments have shown a spatial resolution of 2 nm and temporal resolution of 500 fs under ambient conditions. Currently, the THz-STM is being developed for operation in ultrahigh vacuum. The challenges involved with operating in a vacuum environment, simulations...
Dr
William Hildebrand
15/06/2016, 13:15
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
2016 DCMMP PhD Thesis Award Competition
The study of classical wave transport in strongly scattering, disordered media is a field rich with potential for understanding new fundamental wave physics phenomena, understanding the physical properties of amorphous materials, and probing the characteristics of complex, real-world systems. In this thesis, ultrasonic wave transport in complex media is investigated via analysis of the...
SAHAR BAHRAMI
(CONCORDIA UNIVERSITY)
15/06/2016, 13:30
Particle Physics / Physique des particules (PPD)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
In this work we analyze the effects of introducing vectorlike leptons in the Higgs triplet model to provide a scenario that can explain both neutrino masses and provide a Dark Matter candidate, two essential shortcomings of the Standard Model. We investigate constraints, including the invisible decay width of the Higgs boson and the electroweak precision variables, and impose restrictions on...
Mr
Borna Maraghechi
(Department of Physics, Ryerson University, 350 Victoria Street, Toronto, Ontario, M5B 2K3, Canada), Mr
Elyas Shaswary
(Dept. of Physics, Ryerson University)
15/06/2016, 13:30
Physics in Medicine and Biology / Physique en médecine et en biologie (DPMB-DPMB)
Oral (Student, Not in Competition) / Orale (Étudiant(e), pas dans la compétition)
In this study, the temperature dependence of acoustic harmonics generated by nonlinear ultrasound beam propagation in a mixture of 90% glycerol and 10% water (by volume) used as a tissue-mimicking liquid, was studied as a function of temperature from 26°C to 46°C at two different frequencies. Simulations were performed with a temperature-dependent Khokhlov–Zabolotskaya–Kuznetsov (KZK)...
Mr
Pietro Giampa
(Queen's University)
15/06/2016, 13:45
Particle Physics / Physique des particules (PPD)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
The DEAP-3600 experiment, located 6800 feet underground at the SNOLAB facility, uses 3.6 tons of liquid argon for a direct detection search for weakly-interacting massive particle (WIMP) dark matter. The target sensitivity to the spin-independent WIMP-nucleon cross section is 10$^{-46}$ cm$^{2}$ at 100 GeV/c$^{2}$ WIMP mass. The success of dark matter experiments depends critically on...
Chitra Rangan
(University of Windsor)
15/06/2016, 13:45
Physics Education / Enseignement de la physique (DPE-DEP)
Oral (Non-Student) / orale (non-étudiant)
Authentic assessment [1,2], or assessment of real-world tasks that demonstrate the student's acquisition of skills and knowledge, is a paradigm that is growing in importance in higher education. In Ontario, this form of assessment is taking on greater relevance as the Province aims to connect the funding of higher education programs to the graduates' demonstrated achievement of gaining job...
Mr
Colin Bruulsema
(Laurentian University)
15/06/2016, 13:45
Particle Physics / Physique des particules (PPD)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
Supernovae are the only location where the effects of neutrino-neutrino scattering could plausibly be observed, and they are also the favored location in the universe for certain processes necessary for the formation of heavy elements. This makes supernovae mechanics relevant to the fields of both particle physics and nuclear astrophysics.
A core collapse supernova can be detected by...
isil ozfidan
(University of Alberta)
15/06/2016, 13:45
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
2016 DCMMP PhD Thesis Award Competition
In this thesis, I present a theory of electron-electron interactions in optical properties of graphene and transition metal dichalcogenides (TMDCs), two dimensional nanostructures with a hexagonal lattice.
We start our discussion with electron-electron interactions in artificial rings for which the strength of interactions can be varied and exact results can be obtained. The artificial...
Dr
Robyn Fiori
(Natural Resources Canada)
15/06/2016, 13:45
Atmospheric and Space Physics / Physique atmosphérique et de l'espace (DASP-DPAE)
Oral (Non-Student) / orale (non-étudiant)
Shock waves produced in front of coronal mass ejections can accelerate solar energetic protons Earthward where they are guided by the Earth’s magnetic field into the high-latitude polar cap region. Energetic >10 MeV protons can penetrate into the ionosphere increasing ionization in the D-region causing a polar cap absorption (PCA) event potentially blocking out high frequency (HF) radio...
VOLATIANA RAZAFINDRAMANANA
15/06/2016, 13:45
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
In the perspective of widespread utilization of hydrogen, safe and low cost ways to store hydrogen are needed. Two common ways to store hydrogen are in the liquid and gaseous forms. However, both of these technique present serious drawbacks for many practical applications because they necessitate either a very low temperature (20 K) or a high pressure (700 bar). Another way to store hydrogen...
Hichem Guerboukha
(École Polytechnique de Montréal)
15/06/2016, 13:45
Division of Atomic, Molecular and Optical Physics, Canada / Division de la physique atomique, moléculaire et photonique, Canada (DAMOPC-DPAMPC)
Oral (Student, Not in Competition) / Orale (Étudiant(e), pas dans la compétition)
Silk is a unique kind of nature protein. In recent years this ancient material has been introduced into biomedical field as a promising biomaterial which opened a new era in the development of optical interfaces and sensors for biomedical applications. In this work, we present biocompatible THz waveguides made from silk foam. To our knowledge, this is the first time when biocompatible...
Mr
Martin Magill
(University of Ontario Institute of Technology)
15/06/2016, 13:45
Physics in Medicine and Biology / Physique en médecine et en biologie (DPMB-DPMB)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
Nanopores are of great interest in the study of biological systems and in the development of new scientific and industrial tools.
Synthetic nanopores, constructed from silicon wafers or similar materials, show great potential for detecting, sorting, and manipulating polymers rapidly and efficienctly.
Traditional nanopores are short cylindrical holes in a membrane, whose radii and lengths are...
Mr
David Durette
(UQTR)
15/06/2016, 14:00
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
En raison de sa faible densité ambiante, le stockage de l'hydrogène à l'état pur (comme dans l'état gaz ou liquide) nécessite des conditions thermodynamiques difficiles. Le stockage d'hydrogène basé sur les matériaux constitue un moyen efficace de réduire les exigences thermodynamiques afin d'atteindre des densités de stockage importantes pour les systèmes énergétiques. Par exemple, la...
Hichem Guerboukha
(Ecole Polytechnique de Montreal)
15/06/2016, 14:00
Division of Atomic, Molecular and Optical Physics, Canada / Division de la physique atomique, moléculaire et photonique, Canada (DAMOPC-DPAMPC)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
For several years, THz spectroscopy and imaging have been applied to many different fields. However, some burdens still remain in its commercial generalization, particularly for the industry sector. One of these difficulties lies in the acquisition time. In a typical THz time-domain spectroscopy system (THz-TDS), the THz pulse is sampled in time by the means of a micrometer linear delay line....
Mehran Bagheri
(University of Ottawa)
15/06/2016, 14:00
Physics in Medicine and Biology / Physique en médecine et en biologie (DPMB-DPMB)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
Silk fibres from the Bombyx Mori silkworm are well known for their impressive strength and toughness. They have mechanical properties that are comparable to the best synthetic fibres available, and consequently have numerous applications as structural materials in biomedicine and engineering. Despite their importance as high performance materials, a comprehensive understanding of the how the...
P. Prikryl
(Physics Department, University of New Brunswick, Fredericton, NB; Geomagnetic Laboratory, Natural Resources Canada, Ottawa, ON, Canada)
15/06/2016, 14:00
Atmospheric and Space Physics / Physique atmosphérique et de l'espace (DASP-DPAE)
Oral (Non-Student) / orale (non-étudiant)
Ionospheric irregularities cause rapid fluctuations of radio wave amplitude and phase that can degrade GPS positional accuracy and affect performance of radio communication and navigation systems. The ionosphere becomes particularly disturbed during geomagnetic storms caused by impacts of coronal mass ejections compounded by high-speed plasma streams from coronal holes. Geomagnetic storm of...
Nathaniel Lasry
(John Abbott College)
15/06/2016, 14:00
Physics Education / Enseignement de la physique (DPE-DEP)
Oral (Non-Student) / orale (non-étudiant)
In teacher-centered classrooms, instructors know in advance what will happen in 5, 10 or 20 minutes time. In an active learning classroom, students control the learning sequence. Hence, many instructors have trouble managing many groups working simultaneously. This is known as the "Orchestration load” problem in learning sciences. A simple case is that of a problem session with N groups...
Robyn Campbell
(Carleton University)
15/06/2016, 14:00
Particle Physics / Physique des particules (PPD)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
We consider a variant of the Standard Model with a Higgs-like dilaton, extended to include a singlet scalar dark matter candidate. In this model, the properties of the dilaton are constrained by the observed Higgs properties, dark matter relic abundance, and dark matter direct detection limits, as well as the latest collider limits. We place constraints on the free parameters of the model:...
Tom Feusels
(UBC)
15/06/2016, 14:00
Particle Physics / Physique des particules (PPD)
Oral (Non-Student) / orale (non-étudiant)
The recent discovery of muon neutrino to electron neutrino conversion arising from neutrino oscillations has opened the door to the possibility for CP violation in neutrino oscillations. Such CP violation will be an important clue to how our universe came to our matter dominated state and for understanding the mass and mixing structure of neutrinos, a question left unanswered by the Standard...
Courtney Mielnichuk
(for the DEAP Collaboration, University of Alberta, Department of Physics)
15/06/2016, 14:15
Particle Physics / Physique des particules (PPD)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
The DEAP-3600 experiment searches for spin-independent interactions of weakly interacting massive particle (WIMP) dark matter candidates. The detector utilizes a 3600 kg mass of liquid argon as the dark matter target, which is contained in a spherical acrylic vessel. There is an opening at the top of the acrylic vessel where the cooling system is located, in the ‘neck’ of the detector. The...
Dr
Paul Bazylewski
(University of Saskatchewan)
15/06/2016, 14:15
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
2016 DCMMP PhD Thesis Award Competition
In the study of materials for electronic devices, there is a continuous search for new materials with useful properties such as grapheme and grapheme-based materials. Research on these materials is widespread for many applications such as manipulation the band structure of grapheme to induce a semiconducting band gap. The focus of this study is a cobalt nanoparticle-graphene system...
Jean-Simon Larochelle
(Université de Montréal)
15/06/2016, 14:15
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
We have used a 6.38 MeV N-15 nuclear resonance to detect hydrogen in steel that had been electroplated with a protective Cd surface coating. With the sample maintained at room temperature, we observed a rapid decline in hydrogen concentration during the measurement, indicative of beam-induced hydrogen detrapping and mobility. It appears that the hydrogen concentration falls off as a simple...
James L. Harden
(University of Ottawa)
15/06/2016, 14:15
Physics in Medicine and Biology / Physique en médecine et en biologie (DPMB-DPMB)
Invited Speaker / Conférencier invité
We discuss the use of a recently developed microscopy technique,
differential dynamic microscopy (DDM), for studying the collective dynamics of two dimensional assemblies of living cells. DDM is a Fourier-space image analysis method that allows one to obtain the equivalent of multi-angle dynamic light scattering data using an ordinary white-light microscopy set-up and a digital video camera....
Dr
Oyedemi Oyekola
(Private)
15/06/2016, 14:15
Atmospheric and Space Physics / Physique atmosphérique et de l'espace (DASP-DPAE)
Oral (Non-Student) / orale (non-étudiant)
Oyedemi S. Oyekola
Etobicoke, ON M8V 3C8, Canada
Email:ooyekola@gmail.com
Abstract. We have used ionosonde observations recorded at Ibadan (7.4 degree North, 3.9 degree East) during the International Geophysical year (1957-58) to investigate evening and nighttime characteristic features of equatorial ionosphere during high solar flux and quiet magnetic conditions. We have also used...
Tsuneyuki Ozaki
(INRS-EMT)
15/06/2016, 14:15
Division of Atomic, Molecular and Optical Physics, Canada / Division de la physique atomique, moléculaire et photonique, Canada (DAMOPC-DPAMPC)
Invited Speaker / Conférencier invité
Tabletop sources of high-field terahertz (THz) pulses are currently a hot topic, which is being pursued by many groups around the world. While the favourite method for intense THz generation is optical rectification in nonlinear crystals, research on using other novel methods have shown promising results, including those using air-plasmas, relativistic laser-solid interactions, and large...
Mark Scott
(TRIUMF)
15/06/2016, 14:15
Particle Physics / Physique des particules (PPD)
Oral (Non-Student) / orale (non-étudiant)
CP violation in the lepton sector is the next major milestone in neutrino physics. Recent T2K and NOvA results show some preference for a large CP violation. In the next several years, the statistical sensitivity will start to reach the sensitive region if the systematic uncertainties are suppressed down to a few percent level, in particular for nuclear uncertainties in the neutrino cross...
Dr
Katarin MacLeod
(St. Francis Xavier University)
15/06/2016, 14:15
Physics Education / Enseignement de la physique (DPE-DEP)
Oral (Non-Student) / orale (non-étudiant)
The focus of this talk will be on the findings and insights of mentoring and editing a text which focused on the essence of ‘story’, as it relates to the experiences of physicists and physics educators at the tertiary level. The original call for chapters indicated, that each author who is either a physicist and/or a physics educator address their career path to their current role as a...
Jonathon David White
(Yuan Ze University)
15/06/2016, 14:30
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Oral (Non-Student) / orale (non-étudiant)
Fluorescence of single dipole emitters near a dielectric interface are studied. A 15 nm thick layer of polystyrene lightly doped with Rhodamine 6G was spin-cast onto cleaned glass and PMMA coated glass slides. Flourescence lifetime was found to increase by a factor of three as the PMMA spacer layer thickness was increased. This lifetime increase is accounted for by a change in the ensemble...
Fabrice Retiere
(TRIUMF)
15/06/2016, 14:30
Particle Physics / Physique des particules (PPD)
Oral (Non-Student) / orale (non-étudiant)
The nEXO experiment is being designed to achieve unprecedented sensitivity to the neutrino-less double beta decay of 136Xenon. nEXO background rejection strategy includes in particular self-shielding, interaction site counting and energy resolution. Efficient light detection is critical for achieving the desired energy resolution of 2% (FHWM) or better. Simulations show that such an energy...
Rob Gillies
(University of Calgary)
15/06/2016, 14:30
Atmospheric and Space Physics / Physique atmosphérique et de l'espace (DASP-DPAE)
Oral (Non-Student) / orale (non-étudiant)
The Canadian face of the Resolute Bay Incoherent Scatter Radar (RISR-C) saw first light in August of 2015. To date, several different experiments measuring the polar ionosphere have been performed with RISR-C. These experiments are often complemented with data from the co-located northward facing RISR-N radar operated by SRI International. Like other Advanced Modular Incoherent Scatter...
Mr
Shihao Wu
(Memorial University Grenfell Campus)
15/06/2016, 14:30
Particle Physics / Physique des particules (PPD)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
Based on the simple U’(1) extension of Standard Model (SM), we have used Dark Vector boson kinetic and mass mixings to generate the new beyond the SM extension: dark photon and Z’ bosons. Both dark photon and Z’ have different masses and couplings to the original SM particles defined by the set of mixing parameters. In addition, Z’ boson...
Nathaniel Lasry
(John Abbott College)
15/06/2016, 15:15
Physics Education / Enseignement de la physique (DPE-DEP)
Oral (Non-Student) / orale (non-étudiant)
Few pedagogical approaches have been as well documented in physics education research as Peer Instruction as developed by Eric Mazur at Harvard University 25 years ago. Peer instruction is an interactive process that takes place in real-time between students in a classroom. However, could Peer Instruction be used asychronously? The utility of asynchronous Peer Instruction is evident for...
Prof.
Jean-Michel Ménard
(University of Ottawa, University of Regensburg)
15/06/2016, 15:15
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Invited Speaker / Conférencier invité
Récents progrès dans les techniques de fabrication de microcavités à semi-conducteurs ont permis d’observer des nouveaux états propres issus du couplage fort entre un champ photonique fortement confiné et des excitons de puits quantiques. Ces états, appelés exciton-polaritons, ont un caractère mixte lumière-matière qui leur confère des propriétés très particulières. Notamment, leur faible...
Dr
Daniel Lascar
(TRIUMF)
15/06/2016, 15:15
Nuclear Physics / Physique nucléaire (DNP-DPN)
Invited Speaker / Conférencier invité
Nuclear and atomic masses factor into almost every branch of physics. In nuclear physics and nuclear astrophysics, masses contribute to our understanding of fundamental symmetries and explosive nucleosynthesis, just to name a few applications.
TRIUMF’s Ion Trap for Atomic and Nuclear science (TITAN) has been built to study exotic, short-lived nuclei. The TITAN facility consists of three main...
Dr
Simon Thibault
(Université Laval)
15/06/2016, 15:15
Industrial and Applied Physics / Physique industrielle et appliquée (DIAP-DPIA)
Invited Speaker / Conférencier invité
En 2016, on trouve des modules de caméra miniature dans une variété de produits, comme les webcams, les cellulaires, le véhicules, les endoscopes, les tablettes, les ordinateurs portables et bien d’autres. Les caméras de téléphones cellulaires présentent peut-être les plus grands défis puisque le marché exige des dispositifs toujours plus minces et des algorithmes intégrés de traitement...
Matthew Fitzpatrick
(Simon Fraser University)
15/06/2016, 15:15
Division of Atomic, Molecular and Optical Physics, Canada / Division de la physique atomique, moléculaire et photonique, Canada (DAMOPC-DPAMPC)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
The Bose Hubbard model (BHM) is a minimal model that describes interacting
ultracold bosons in an optical lattice, allowing the opportunity for experiments
to probe quench dynamics of the model. Theoretically, it has proven
challenging to study spatio-temporal correlations in the BHM in dimensions
higher than one. We use the Schwinger-Keldysh technique and a strong-coupling
expansion to...
Tom Steele
(U of Saskatchewan)
15/06/2016, 15:15
Theoretical Physics / Physique théorique (DTP-DPT)
Invited Speaker / Conférencier invité
One of the possible custodial symmetries responsible for naturalness in the Standard Model is conformal (scale invariance) symmetry of the Lagrangian. After a brief review of the Higgs mechanism in the classically-conformal Standard Model, Higgs-portal singlet extensions as a model for dark matter are introduced. Results for the dark matter mass and cosmological abundance predictions in...
Calvin Kalman
(Concordia University)
15/06/2016, 15:30
Physics Education / Enseignement de la physique (DPE-DEP)
Oral (Non-Student) / orale (non-étudiant)
Learning about the Nature of Science (NOS) and the History of Science (HOS) has been shown to be highly beneficial to both the study and the practice of science. In particular, students’ conception of science can be improved by including NOS and HOS in the curriculum. However, teaching of NOS and HOS is not always effective: simplistic or erroneous conceptions of science sometimes persist....
Jeffrey McGuirk
(Simon Fraser University)
15/06/2016, 15:30
Division of Atomic, Molecular and Optical Physics, Canada / Division de la physique atomique, moléculaire et photonique, Canada (DAMOPC-DPAMPC)
Invited Speaker / Conférencier invité
We study the crossover from classical to quantum diffusion by studying the equilibration of longitudinal spin domains in a trapped 87Rb sample just above quantum degeneracy. By controlling the degree of spin coherence in the domain wall, we can dramatically alter the relaxation dynamics of the system. Coherence in the domain wall leads to transverse-spin-mediated longitudinal spin diffusion...
David Crandles
(Brock University)
15/06/2016, 15:45
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Oral (Non-Student) / orale (non-étudiant)
Recently, several papers reported the discovery of giant permittivity and low dielectric loss in (Nb+In) co-doped TiO$_2$. A series of tests was performed which included the measurement of the frequency dependence of the dielectric permittivity and ac conductivity of co-doped (Nb+In)TiO$_2$ as a function of electrode type, sample thickness and temperature. The data suggest that the...
Robert Lamb
(Canadian Light Source Inc.)
15/06/2016, 15:45
Industrial and Applied Physics / Physique industrielle et appliquée (DIAP-DPIA)
Invited Speaker / Conférencier invité
Non stick coatings are everywhere in nature and these have stimulated numerous applications in industry. For example leaf surfaces have been the inspiration for novel waterproof textile coatings. Insect wings may hold the key to strategies for antifouling on marine vessels and the associated energy savings that go hand in hand with such developments.
The latest “green” nanotechnology...
Dennis Muecher
(University of Guelph)
15/06/2016, 15:45
Nuclear Physics / Physique nucléaire (DNP-DPN)
Invited Speaker / Conférencier invité
The science of stellar nucleosynthesis aims at understanding how the elements in the universe are formed in stars. On a microscopic scale, the formation of elements is dictated by the properties of atomic nuclei and their interactions. Of special importance for r-process nucleosynthesis is a fundamental understanding of shell evolution towards neutron-rich nuclei. The finding of a soft N=2...
Valerio Faraoni
(Bishop's University)
15/06/2016, 15:45
Theoretical Physics / Physique théorique (DTP-DPT)
Oral (Non-Student) / orale (non-étudiant)
In an accelerating universe there is a maximum radius above which a shell of test particles cannot collapse and is dispersed by the cosmic expansion. This radius could
be used in conjunction with observations of large structures to constrain the
equation of state of the universe. We express the turnaround radius in general relativity in terms of the Hawking quasilocal mass and we extend...
Mr
David Spierings
(University of Toronto)
15/06/2016, 16:00
Division of Atomic, Molecular and Optical Physics, Canada / Division de la physique atomique, moléculaire et photonique, Canada (DAMOPC-DPAMPC)
Oral (Student, Not in Competition) / Orale (Étudiant(e), pas dans la compétition)
How much time does it take for a particle to tunnel? This has been a controversial question for nearly a century because of the inability to make a direct measurement of time. One operational definition for the tunnelling time is the Larmor clock, in which the spin degree of freedom of a tunneling particle is used as a clock that ticks only inside the forbidden region due to the presence of a...
pierre rinkel
(Université de Sherbrooke)
15/06/2016, 16:00
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Oral (Student, Not in Competition) / Orale (Étudiant(e), pas dans la compétition)
Weyl semimetals are three dimensional crystals that contain topologically protected Dirac fermions in the electronic band structure.
These materials display an array of unusual transport and optical properties, which can be traced to the emergence of an axion term in Maxwell's equations.
Predicted four decades ago in the context of high energy physics, the axion has remained experimentally...
Réjean Plamondon
(École Polytechnique de Montréal)
15/06/2016, 16:00
Theoretical Physics / Physique théorique (DTP-DPT)
Oral (Non-Student) / orale (non-étudiant)
This paper analyses the outcome of a new metric [1] that describes the space-time geometry of a static symmetric massive celestial object. It is based on an *erfc* potential that characterizes the gravitation field emerging from this model. The metric relies on an intrinsic physical constant σ, a star-specific proper length that scales measurements in its surroundings. Although σ must be...
Martin Connors
(Athabasca University)
15/06/2016, 16:00
Physics Education / Enseignement de la physique (DPE-DEP)
Oral (Non-Student) / orale (non-étudiant)
Although Athabasca University has offered distance education courses in many subjects for over a quarter century, twenty years ago Physics was taught by mailing out printed course materials while requiring students to physically attend onsite labs, some coming from as far away as Texas. A major increase in Physics enrollment took place after we switched to mail-out course material, with home...
Prof.
Krzysztof Starosta
(Simon Fraser University)
15/06/2016, 16:15
Nuclear Physics / Physique nucléaire (DNP-DPN)
Oral (Non-Student) / orale (non-étudiant)
In the last decade nuclear chirality resulting from an orthogonal coupling of angular momentum vectors in triaxial nuclei has been a subject of numerous experimental and theoretical studies. Three perpendicular angular momenta can form two systems of the opposite handedness, the right-handed and the left-handed system; the time-reversal operator, which reverses orientation of each of the...
Ivan Panfilov
15/06/2016, 16:15
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Oral (Student, Not in Competition) / Orale (Étudiant(e), pas dans la compétition)
We present a mapping of a two-dimensional system of interacting bosons in a strong perpendicular magnetic eld to an equivalent system of interacting bosons on the square lattice in the absence of the eld. The mapping utilizes a magnetic Bloch and the corresponding magnetic Wannier singleparticle basis in the lowest Landau level. By construction, the ground states of the resulting model of...
Gabor Kunstatter
(University of Winnipeg)
15/06/2016, 16:15
Theoretical Physics / Physique théorique (DTP-DPT)
Oral (Non-Student) / orale (non-étudiant)
I will first briefly review the key features of the black hole information loss paradox and the famous “firewall” resolution of Almheiri, Marolf, Polchinski and Susskind. I will then go on to describe work on a different, considerably more mundane solution to the problem based on the observation that the singularity at the center of all black holes lies at the heart of the information loss...
Prof.
Andrzej Czajkowski
(University of Ottawa)
15/06/2016, 16:15
Physics Education / Enseignement de la physique (DPE-DEP)
Oral (Non-Student) / orale (non-étudiant)
Under current admission conditions for the Faculty of Science at the University of Ottawa, students entering our faculty need to have equivalents of two advanced math courses (Advanced Functions, and Calculus and Vectors), as well as two of the three 4U science courses (Chemistry, Biology and Physics). At present time, roughly 30% of all admitted students are missing one of them, and it is...
Lindsay LeBlanc
(University of Alberta)
15/06/2016, 16:15
Division of Atomic, Molecular and Optical Physics, Canada / Division de la physique atomique, moléculaire et photonique, Canada (DAMOPC-DPAMPC)
Oral (Non-Student) / orale (non-étudiant)
Using techniques that exploit the high precision atomic physics, we have exquisite control over several degrees of freedom in an ultracold atomic system, with which we can create analogues to a broader class of physical systems through the principle of quantum simulation. Raman transitions give us the ability to effect a "spin-orbit coupling" in our ultracold gas, by facilitating the transfer...
15/06/2016, 17:15
15/06/2016, 19:30
Invited Speaker / Conférencier invité
MC – Richard Bourgeois-Doyle from NRC
Basic and applied physics and standards
Dr. Nelson Rowell
NRC Photometry and Spectrophotometry
Chemical physics
Dr. Albert Stolow
Canada Research Chair in Molecular Photonics, University of Ottawa
Astrophysics
Dr. Gregory Fahlman
NRC General Manager, NRC Herzberg
Biological physics
Dr. Linda Johnston
NRC Nanoscale Measurement
Physics for industrial...
Guillaume Giroux
(Queen's University)
16/06/2016, 08:15
Particle Physics / Physique des particules (PPD)
Oral (Student, Not in Competition) / Orale (Étudiant(e), pas dans la compétition)
The PICO collaboration uses superheated liquid detectors, or "bubble chambers", to search for dark matter. Recent operation of the PICO-2L and PICO-60 detectors at SNOLAB allows the most stringent constraints for WIMP dark matter interaction in the spin-dependent sector despite the presence of an anomalous background attributed to the presence of dust particulates in the superheated fluid. I...
Prof.
Al-Amin Dhirani
(University of Toronto)
16/06/2016, 08:30
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Oral (Non-Student) / orale (non-étudiant)
Chemists have made tremendous advances in synthesizing a variety of nanostructures with control over their size, shape, and chemical composition. Plus, it is possible to control their assembly and to make macroscopic materials. Combined, these advances suggest an opportunity to “nanoengineer” materials ie controllably fabricate materials from the nanoscale up with a wide range of controlled...
Juris Svenne
(University of Manitoba)
16/06/2016, 08:30
Theoretical Physics / Physique théorique (DTP-DPT)
Invited Speaker / Conférencier invité
The Multi-Channel Algebraic-Scattering (MCAS) method was developed in 2003 for the analysis of low-energy nuclear spectra and of resonant scattering. It continues to be used effectively for nuclear-structure studies. The MCAS approach allows the construction of the nucleon-core-nucleus model Hamiltonian which can be defined in detail (coupling to the collective modes, rotational or...
Dr
Christian Ouellet
(Carleton University)
16/06/2016, 08:30
Particle Physics / Physique des particules (PPD)
Oral (Non-Student) / orale (non-étudiant)
Astrophysical lines of evidence point towards dark matter constituting 27\% of the energy density of the Universe and 85\% of all matter.
DEAP-3600, located at SNOLAB in Sudbury Canada, is a single phase liquid argon direct detection dark matter experiment.
The light produced by nuclear recoil within liquid argon has considerable light yield and is characteristic of the interaction ...
maxime Ignacio
(University of Ottawa)
16/06/2016, 08:30
Physics in Medicine and Biology / Physique en médecine et en biologie (DPMB-DPMB)
Oral (Student, Not in Competition) / Orale (Étudiant(e), pas dans la compétition)
Characterizing and predicting time release profiles is crucial in order to optimize the performance of drug devices. The exact analytical expression for the drug release function, which is a solution of the diffusion equation, is generally too complex to be employed for this purpose. Therefore, it is convenient to use simpler fitting functions which reproduce qualitatively the overall release...
Dr
Gautam Das
(Lakehead University)
16/06/2016, 08:30
Division of Atomic, Molecular and Optical Physics, Canada / Division de la physique atomique, moléculaire et photonique, Canada (DAMOPC-DPAMPC)
Invited Speaker / Conférencier invité
Fiber lasers operating either in the CW or PULSED mode are established as robust and reliable devices. They have wide applications in industry and medicine because of their unique characteristics such as an all-fiber design, compact size, cost-effective production and operation, and lack of need for re-alignment and external cooling. A fiber laser emitting single-longitudinal-mode,...
Dr
Matthew Rodrigues
(Health Canada)
16/06/2016, 08:30
Instrumentation and Measurement Physics / Physique des instruments et mesures (DIMP-DPIM)
Oral (Non-Student) / orale (non-étudiant)
T.J. Stocki1, M. A. Rodrigues1, R. McCutcheon-Wickham1, L. Chaloner1, J. Rollings1, M.-O. Boudreau1, A. Parujanwala1, J.-F. Mercier1, M. Cooke1, A. Bilton2, A. Ethier2, J. Whitlock2, D. Hunton2, B. Wilson2, D. Killey2, H. Seywerd3, R. Fortin3, L. Sinclair3, D. Oneschuk3, M. Coyle3, F. Grenier4, T. Cunning4, K. Henderson4, R. Hugron4, D. Swann4 and C. Bouchard1*
1Radiation Protection...
Dr
Jonathan Sharp
(University of Alberta)
16/06/2016, 08:30
Physics Education / Enseignement de la physique (DPE-DEP)
Oral (Non-Student) / orale (non-étudiant)
We have developed an open source web-based platform (‘OpenMap’) and website (‘OpenPhys’) to present interactive self-guided multi-level learning resources. Content is designed for viewing on any device (phone, tablet, laptop) using mobile web technologies.
**OpenMap Format:** The OpenMap format is crudely: ‘a 2D interactive PowerPoint for the web’. Content is organized as a series of...
Dr
Rashid Mehdiyev
(Carleton Unversity, Department of Physics)
16/06/2016, 08:45
Particle Physics / Physique des particules (PPD)
Oral (Non-Student) / orale (non-étudiant)
Rashid Mehdiyev, for the DEAP Collaboration,
Carleton University, Department of Physics
DEAP-3600 is a direct dark matter search experiment at SNOLAB. The optical system for DEAP-3600 consists of 255 high quantum efficiency photomultipier tubes (PMTs), which detect and monitor the scintillation light produced by particle interactions in the liquid argon target of the detector. The PMT...
Dr
Alexis Reymbaut
(Université de Sherbrooke)
16/06/2016, 08:45
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Oral (Non-Student) / orale (non-étudiant)
While most experimental and theoretical clues lean towards a magnetic origin for the pairing mechanism of cuprates, the question of its degree of retardation in the strong correlation regime remains highly controversial.[1,2] The answer to this question lies partly in the frequency dependence of the anomalous spectral function of doped Mott insulators, extracted at finite temperature via the...
Dr
Zakir Kazi
(University of Ottawa)
16/06/2016, 08:45
Instrumentation and Measurement Physics / Physique des instruments et mesures (DIMP-DPIM)
Oral (Non-Student) / orale (non-étudiant)
236U is used as a signature in nuclear forensic, environmental and oceanographic studies. Its atomic ratio with the most abundant uranium isotope (238U) in environmental and bioassay samples can vary widely from 10-8 to 10-12. Therefore, its full-range measurement is a challenge by conventional radiometric or mass spectrometric methods. Accelerator Mass Spectrometry (AMS) offers...
1150.
Online versus paper homework – how does it affect student experience, attitudes, and learning?
Daria Ahrensmeier
(Simon Fraser University)
16/06/2016, 08:45
Physics Education / Enseignement de la physique (DPE-DEP)
Oral (Non-Student) / orale (non-étudiant)
In many first-year physics courses, students use publisher-created online homework systems that provide student learning supports including hints to address specific mistakes and additional resources such as tutorials, videos, or simulations. Compared to traditional paper-based homework, these online systems have advantages (e.g. 24/7 hint access, problems often Physics Education...
Melanie Martin
(Physics, University of Winnipeg and Radiology University of Manitoba)
16/06/2016, 08:45
Physics in Medicine and Biology / Physique en médecine et en biologie (DPMB-DPMB)
Oral (Non-Student) / orale (non-étudiant)
In this study, quantitative magnetic resonance imaging (MRI) was used to determine if it could detect atrophy and microstructural changes in the hippocampus, and damage to peripheral white matter (WM) structures in mouse models of Alzheimer’s disease (AD). The aim of our study was to determine if T1 relaxation, diffusion tensor imaging (DTI), and quantitative magnetization transfer imaging...
Maxim Pospelov
16/06/2016, 09:00
Particle Physics / Physique des particules (PPD)
Invited Speaker / Conférencier invité
Scott Fallows
(University of Alberta)
16/06/2016, 09:00
Particle Physics / Physique des particules (PPD)
Oral (Non-Student) / orale (non-étudiant)
The PICO collaboration searches for dark matter particles with superheated fluid detectors operated under conditions in which they are insensitive to the electron recoils that constitute the traditionally dominant background for direct detection searches. By measuring the acoustic energy emitted during bubble formation, these detectors are also able to discriminate against alpha particle...
Jonas Valiunas
(Lakehead University)
16/06/2016, 09:00
Division of Atomic, Molecular and Optical Physics, Canada / Division de la physique atomique, moléculaire et photonique, Canada (DAMOPC-DPAMPC)
Oral (Student, Not in Competition) / Orale (Étudiant(e), pas dans la compétition)
A gas sensor based on optical fiber technology is in demand for applications in environmental monitoring. Authors will present an acetylene (C2H2) gas sensor which was developed using the principle of intracavity laser absorption spectroscopy operating at room temperature. An intracavity gas cell based on hollow core photonic crystal fiber was developed and used inside a fiber ring laser...
Aaron Slepkov
(Trent University)
16/06/2016, 09:00
Physics Education / Enseignement de la physique (DPE-DEP)
Invited Speaker / Conférencier invité
Multiple-choice (MC) exams are becoming more prevalent in physics courses as student populations rise and instructional resources dwindle. Particularly in STEM disciplines we would like to find ways to test deeper levels of understanding or knowledge integrations than are typically afforded by multiple-choice tests. With simple immediate-feedback tools we can construct new types of...
Cole MacDonald
(University of Ottawa)
16/06/2016, 09:00
Instrumentation and Measurement Physics / Physique des instruments et mesures (DIMP-DPIM)
Oral (Non-Student) / orale (non-étudiant)
The anthropogenic radioisotope, Cs-137, is routinely used in oceanographic studies and the monitoring of radioactive contamination. Currently, this isotope is measured radiometrically by observing its characteristic 662 keV gamma emission. In low concentrations, however, this method of measurement can take days per sample. Recently there has been much interest in the measurement of this...
Robert deKemp
(uOttawa Heart Institute)
16/06/2016, 09:00
Physics in Medicine and Biology / Physique en médecine et en biologie (DPMB-DPMB)
Invited Speaker / Conférencier invité
Nuclear cardiology imaging with SPECT or PET is used widely in North America for the diagnosis and management of patients with coronary artery disease. Conventional myocardial perfusion imaging (MPI) can identify areas of reversible ischemia, as suitable targets for coronary artery revascularization by angioplasty or bypass surgery. However, the accuracy of this technique is limited in...
Rachel Wortis
(Trent University)
16/06/2016, 09:00
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Oral (Non-Student) / orale (non-étudiant)
The state of an Anderson localized system can be described in terms of the occupation of a set of single-particle wave functions which are localized in space. When interactions are added, single-particle wave functions are no longer well defined, so what is a useful description of the state of a many-body localized system and what about it is localized? Given that any system with...
Nicolas Guérin
(Canadian Nuclear Laboratories)
16/06/2016, 09:15
Instrumentation and Measurement Physics / Physique des instruments et mesures (DIMP-DPIM)
Oral (Non-Student) / orale (non-étudiant)
Technetium-99 (⁹⁹Tc) is one of the most important fission products of ²³⁵U (~6% yield). It is a long lived radioisotope (2.11X10⁵ years half-life), which decays by emiting beta radiation. ⁹⁹Tc is of environmental concern because it is very mobile in the environment as Tc(VII) (TcO₄⁻) and can be bio-accumulated in some plants and animals. ⁹⁹Tc can be measured by ICP-MS, but ruthenium (Ru)...
Prof.
Stephen Julian
(University of Toronto)
16/06/2016, 09:15
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Oral (Non-Student) / orale (non-étudiant)
We have measured resistivity vs. temperature and pressure on the fluoro-substituted oxobenzene-bridged bisdithiazolyl radical, FBBO. This is a layered, single component organic compound that is a Mott insulator at ambient pressure, due to the singly occupied molecular orbitals and an intrinsically high inter-molecular charge transfer energy barrier. Previous room temperature infrared...
Antonino Calà Lesina
(University of Ottawa)
16/06/2016, 09:15
Division of Atomic, Molecular and Optical Physics, Canada / Division de la physique atomique, moléculaire et photonique, Canada (DAMOPC-DPAMPC)
Oral (Non-Student) / orale (non-étudiant)
Classical optical lenses shape the light beam based on gradual phase shifts accumulated during the propagation. This results in devices which are difficult to integrate. In recent years, plasmonic metasurfaces opened the field of flat optics. Abrupt changes in the properties of the light, such as phase and polarization, can be introduced at the sub-wavelength scale by the meta-atoms. These...
Dr
Ian Lawson
(SNOLAB)
16/06/2016, 09:15
Particle Physics / Physique des particules (PPD)
Oral (Non-Student) / orale (non-étudiant)
The DAMIC detector, currently taking data at SNOLAB, is a Dark Matter search experiment
that employs scientific grade CCDs made of silicon as target material. The low readout noise of the CCDs yield to a ionization energy threshold below 60 eVee and provides optimal sensitivity for low mass WIMPs (< 20 GeV). The pixelization (15 microns) and superb energy resolution of the detectors allow...
Bei Cai
(Queen's University)
16/06/2016, 09:30
Particle Physics / Physique des particules (PPD)
Oral (Non-Student) / orale (non-étudiant)
The NEWS (New Experiments with Spheres) project employs novel spherical gas detectors that are very sensitive to very low energy deposition. Each detector consists of a spherical gas volume with a small central electrode forming a radial electric field. At Queen's University we are currently working with a few prototype detectors for their characterization under different working conditions...
Benjamin Freund
(Universite de Montreal (CA))
16/06/2016, 09:30
Instrumentation and Measurement Physics / Physique des instruments et mesures (DIMP-DPIM)
Oral (Student, Not in Competition) / Orale (Étudiant(e), pas dans la compétition)
The CALICE Digital Hadron Calorimeter (DHCAL) is a highly-granular 1m$^3$ large
prototype, based on Resistive Plate Chambers (RPCs) with digital readout of
$1 x 1$ cm$^2$ pads. In special tests, 50 of its active layers were exposed to low energy
particle beams, without interleaved absorber plates. The thickness of each layer
corresponded approximately to 0.29 radiation lengths or 0.034...
Marina Milner-Bolotin
(The University of British Columbia)
16/06/2016, 09:30
Physics Education / Enseignement de la physique (DPE-DEP)
Oral (Non-Student) / orale (non-étudiant)
At the University of British Columbia (UBC) we educate 8-14 future physics teachers annually. Most of them already have B.Sc. degrees in physics or related fields, while some are a completing the B.Sc. concurrently. As part of their secondary teacher education program, teacher-candidates participate in a 3-credit physics methods course taught by the author. Its goal is to help...
Luc Marleau
(Université Laval)
16/06/2016, 09:30
Theoretical Physics / Physique théorique (DTP-DPT)
Oral (Non-Student) / orale (non-étudiant)
We present our most recent results regarding Near-BPS Skyrmions and argue that they provide an improved description of nucleons and nuclei. For some years now, the Skyrme Model and extensions have been considered natural candidates for a low-energy effective theory of QCD, a point of view supported by results coming from $1/N$ expansion and holographic QCD. This framework leads to an...
Patrick Clancy
(University of Toronto)
16/06/2016, 09:30
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Oral (Non-Student) / orale (non-étudiant)
The honeycomb lattice iridate Li2IrO3 displays a novel J_eff = 1/2 Mott insulating ground state driven by strong 5d spin-orbit coupling effects. Due to a combination of J_eff = 1/2 magnetic moments, 90 degree Ir-O-Ir bond geometry, and honeycomb lattice crystal structure, Li2IrO3 represents one of the most promising candidates for the experimental realization of the Kitaev model. This...
Antonino Calà Lesina
(University of Ottawa)
16/06/2016, 09:30
Division of Atomic, Molecular and Optical Physics, Canada / Division de la physique atomique, moléculaire et photonique, Canada (DAMOPC-DPAMPC)
Oral (Non-Student) / orale (non-étudiant)
The confinement of the light at the nano-scale and the intense fields due to plasmonics, allow us to enormously increase the local density of states of molecule and nano-objects close to the hot-spots. This can be exploited to enhance nonlinear optical processes, such as surface enhanced Raman scattering (SERS), second harmonic generation (SHG), sum and difference frequency generation (SFG and...
Dr
Aram Teymurazyan
16/06/2016, 09:30
Physics in Medicine and Biology / Physique en médecine et en biologie (DPMB-DPMB)
Invited Speaker / Conférencier invité
Megavoltage (MV) x-ray beams generated from a linear accelerator (linac) are commonly used to deliver the prescribed radiation dose to the tumor while minimizing the dose to the surrounding healthy tissues. The geometric accuracy of such treatment is crucial for its success. Currently, there are a number of ways to verify the positional accuracy of the treated target. Megavoltage cone-beam...
firas mansour
(university of waterloo)
16/06/2016, 09:45
Physics Education / Enseignement de la physique (DPE-DEP)
Oral (Non-Student) / orale (non-étudiant)
The availability of high quality online material that was developed in house for an online course provided the impetus to do a complete Flipping of an introductory physics class for non-majors, and create a blended version for majors.
We overview the material and the technology used and highlight the chosen selections for the pre-class component. We also discuss the effectiveness of the in...
zahra yamani
(CNL)
16/06/2016, 09:45
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Oral (Non-Student) / orale (non-étudiant)
Rare-earth orthoferrites, RFeO3 where R is Y or rare earth elements with perovskite structure exhibit intriguing magnetic properties, including non-collinear structures and magnetic phase transitions due to a combination of antiferromagnetic (AFM) exchange interactions and Dzyaloshinsky-Moriya (DM) anti-symmetric exchange interactions, which make them promising candidates for innovative...
Dr
Alvine Kamaha
(Queen's University)
16/06/2016, 09:45
Particle Physics / Physique des particules (PPD)
Oral (Non-Student) / orale (non-étudiant)
Modern precision astronomy strongly suggests the presence of Dark Matter particles whose hunt is among the forefront activities in particle physics nowadays. The NEWS-SNO project (News Experiment With Spheres in SNOLAB) is setting up to probe very low mass Dark Matter particles using a large spherical gaseous detector and very light target nuclei such as H, He and Ne. A 60 cm diameter...
Nimal De Silva
(University of Ottawa)
16/06/2016, 09:45
Instrumentation and Measurement Physics / Physique des instruments et mesures (DIMP-DPIM)
Oral (Non-Student) / orale (non-étudiant)
Instrument calibration is an integral part of many physical and chemical measurement systems. Commonly, instrument response is plotted against a series of known values (standards) of the measurand to establish a calibration line by linear regression. For example, the relationship is established between emitted light intensity versus concentration in Emission Spectrometry, or ion counts...
Dr
Freddy Cachazo
(Perimeter Institute)
16/06/2016, 09:45
Theoretical Physics / Physique théorique (DTP-DPT)
Oral (Non-Student) / orale (non-étudiant)
In 2003 Witten showed that the leading order of scattering amplitudes in the maximally supersymmetric gauge theory (MSYM) in four dimensions can be computed using a string-like formulation. Amplitudes are correlation functions computed on a punctured Riemann sphere. For many years this phenomenon was thought to be special to MSYM. In 2013, an explosion of string-like formulations were...
Mr
Scott VanBommel
(University of Guelph)
16/06/2016, 10:00
Instrumentation and Measurement Physics / Physique des instruments et mesures (DIMP-DPIM)
Oral (Student, Not in Competition) / Orale (Étudiant(e), pas dans la compétition)
Canada's Martian spectrometer, the Alpha Particle X-ray Spectrometer (APXS), is a physics-based third-generation chemical analysis instrument carried by NASA's newest rover on Mars. Mounted at the end of the arm of the Mars Science Laboratory rover *Curiosity*, the fourth and most-recent APXS conducts high-precision in situ measurements of Martian rocks and soils, playing a significant role in...
Mohammad Ahmady
(Mount Allison University)
16/06/2016, 10:00
Particle Physics / Physique des particules (PPD)
Oral (Non-Student) / orale (non-étudiant)
A careful analysis of $B\to K^*\mu^+\mu^-$ observables should consider the long-distance effects of the resonances in the short-distance dominated region. Here, we take into account the narrow
resonance effects in the nonresonance region when calculating the differential decay rate and the forward-backward asymmetry in this decay. In doing so, we use a Breit-
Wigner model for the resonances...
Jesko Sirker
(U Manitoba)
16/06/2016, 10:00
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Invited Speaker / Conférencier invité
In integrable quantum many-body systems exact results for the ground state and the thermodynamic properties can be derived. These results are an important building block in our understanding of quantum systems with strong correlations. They are also a point of reference to judge the quality of approximative analytical and numerical approaches. Within the last years, a number of experiments on...
Dr
RUSLAN PODVIIANIUK
(Laurentian University)
16/06/2016, 10:00
Particle Physics / Physique des particules (PPD)
Oral (Non-Student) / orale (non-étudiant)
The PICO (PICASSO+COUPP) experiment searches for cold dark matter through the direct detection of weakly interacting massive particles (WIMPs) via their spin-dependent interactions with fluorine at SNOLAB, Sudbury - ON. The detection principle is based on the bubble chamber technique. The muon veto for PICO-60 experiment has been developed to reject the signals from muons. Muons interaction...
Jonathan Thiessen
(Lawson Health Research Institute)
16/06/2016, 10:00
Physics in Medicine and Biology / Physique en médecine et en biologie (DPMB-DPMB)
Invited Speaker / Conférencier invité
In our experiences with simultaneous PET/MRI (Siemens Biograph mMR), we have seen several inherent advantages beyond improved anatomical information. In the heart, for example, new insight can be gained when fusing cine, gadolinium-enhanced, and relaxation time mapping MRI with PET tracers sensitive to glycolysis (18F-FDG), perfusion (13N-ammonia), or sympathetic...
Ruben Sandapen
(Acadia University)
16/06/2016, 10:15
Particle Physics / Physique des particules (PPD)
Oral (Non-Student) / orale (non-étudiant)
We use the colour dipole formalism to compute the rate for diffractive phi meson production using a holographic AdS/QCD wavefunction for the phi. We use a dipole cross-section with parameters fitted to the most recent and very precise 2015 HERA data on the proton's structure function. We compare our predictions on diffractive phi production to the data collected at the HERA collider and find...
Dr
Belina von Krosigk
(University of British Columbia)
16/06/2016, 10:15
Particle Physics / Physique des particules (PPD)
Oral (Non-Student) / orale (non-étudiant)
A compelling set of diverse astrophysical observations points to the existence of dark matter, motivating the quest for its direct detection. The most widely accepted dark matter candidates are weakly interacting massive particles (WIMPs). SuperCDMS, the advanced successor of the Cryogenic Dark Matter Search, is designed to directly observe galactic WIMPs via keV-scale nuclear recoils in...
Mr
Boudreault Richard
(Chair, Polar Knowledge Canada)
16/06/2016, 11:00
Herzberg Public, Plenary, and Medal Talks / Conférenciers des sessions Herzberg, plénières et médaillés (CAP-ACP)
Invited Speaker / Conférencier invité
Canada occupies 25% of the Arctic and, of our three ocean coasts, the Arctic Ocean’s is by far the longest while being the least known. The strategic and economic importance of the North for Canadians and the world cannot be minimized. More than 100 000 people live in the north, a majority of whom are First Nations and Inuit. In view of the importance of the Polar Regions to Canadians, our...
Freddy Cachazo
(Perimeter Institute)
16/06/2016, 11:00
Herzberg Public, Plenary, and Medal Talks / Conférenciers des sessions Herzberg, plénières et médaillés (CAP-ACP)
Invited Speaker / Conférencier invité
Scattering amplitudes of massless particles have proven to be very interesting mathematical objects. While clearly defined in terms of Feynman diagrams, these seemingly complicated functions of several complex variables become shockingly simple after miraculous cancellations. In this talk I will explain how Riemann surfaces, cluster algebras and the positive Grassmannian are some of the...
Akira Konaka
(TRIUMF)
16/06/2016, 11:30
Herzberg Public, Plenary, and Medal Talks / Conférenciers des sessions Herzberg, plénières et médaillés (CAP-ACP)
Invited Speaker / Conférencier invité
Neutrino oscillation shows that different flavours of neutrinos, νe, νμ, and ντ, mix like quarks. Thus CP violation is expected due to the complex phase in the mixing matrix as is in the quark case. Since the observables of CP violation, namely difference between neutrino and anti-neutrino oscillations, is proportional to the three mixing angles, sinθ12, sinθ23 and sinθ13, all the three angles...
Al-Amin Dhirani
(University of Toronto)
16/06/2016, 13:15
Instrumentation and Measurement Physics / Physique des instruments et mesures (DIMP-DPIM)
Oral (Non-Student) / orale (non-étudiant)
We have microfabricated and evaluated the performance of nanogap conductivity/dielectric constant sensors with a novel architecture. The “apertured impedance microchips” (AIM) feature aluminum metal/silicon-oxide/silicon layers, where the top metal layer has apertures and the middle oxide layer has wells. This layered yet open geometry enables molecules to have access to detection electric...
An-Chang Shi
(McMaster University)
16/06/2016, 13:15
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Invited Speaker / Conférencier invité
Self-assembly of multiblock copolymers presents a great opportunity to generate tailored polymeric materials with hierarchically ordered nano-scale domains. At the same time, the phase complexity of multiblock copolymers presents a great challenge to experimental and theoretical study of their phase behavior. Theoretically the self-consistent field theory (SCFT) provides a powerful framework...
Prof.
Jeffery Martin
(The University of Winnipeg)
16/06/2016, 13:15
Nuclear Physics / Physique nucléaire (DNP-DPN)
Oral (Non-Student) / orale (non-étudiant)
I discuss plans and recent R&D progress for a new neutron electric dipole moment (nEDM) experiment to be conducted at TRIUMF. The nEDM is sensitive to CP violation arising from new physics beyond the standard model, and arising in the strong sector of the standard model (the strong CP problem). The experiment at TRIUMF will feature a new superfluid helium source of ultracold neutrons (UCN)...
James Dassoulas
(University of Alberta (CA))
16/06/2016, 13:15
Particle Physics / Physique des particules (PPD)
Invited Speaker / Conférencier invité
In 2015, the Large Hadron Collider set a new record, colliding protons at a centre-of-mass energy of 13 tera electron volts. This increase in energy means an increase in sensitivity in searches for new physics for detectors at the LHC. ATLAS has completed a large number of searches for phenomena motivated by theories of physics beyond the Standard Model using the data collected at this...
Payman Rajai
(university of Ottawa)
16/06/2016, 13:15
Physics in Medicine and Biology / Physique en médecine et en biologie (DPMB-DPMB)
Oral (Student, Not in Competition) / Orale (Étudiant(e), pas dans la compétition)
Purpose: To develop and validate a methodology for the simultaneous extraction of index of refraction, n(r), and physical dimension, t(r), profiles from the Spectral OCT data of multi-layered systems without any prior knowledge of the system under test.
Method: We first develop a theoretical framework for the simultaneous extraction of index of refraction and thickness. We then use the...
John Bechhoefer
(Simon Fraser University)
16/06/2016, 13:15
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Invited Speaker / Conférencier invité
Landauer’s principle, formulated in 1961, postulates that irreversible logical or computational operations such as memory erasure require work, no matter how slowly they are performed. For example, to “reset to one” a one-bit memory requires at least kT ln2 of work, which is dissipated as heat. Bennett and, independently, Penrose later pointed out a link to Maxwell’s demon: Were Landauer’s...
Dr
Luc Beaulieu
(Physics Dept, Memorial University)
16/06/2016, 13:30
Instrumentation and Measurement Physics / Physique des instruments et mesures (DIMP-DPIM)
Oral (Non-Student) / orale (non-étudiant)
A new 16 microcantilever sensor system for performing sensing experiments in liquid or gas will be presented. The system uses two 8-microcantilever arrays held in a sensor cell. The microcantilever deflections are monitored by oscillating two focused optical beams over the microcantilevers such that only one microcantilever is illuminated at one time and each microcantilever is illuminated...
Bill Whelan
(University of Prince Edward Island)
16/06/2016, 13:30
Physics in Medicine and Biology / Physique en médecine et en biologie (DPMB-DPMB)
Oral (Non-Student) / orale (non-étudiant)
Optoacoustic (OA) imaging is being investigated as a non-invasive technique for monitoring cancer therapeutics. It involves exposing tissues to nanosecond pulsed near infrared laser light. The optical energy is absorbed by tissue chromophores and converted into heat, leading to thermoelastic expansion, producing acoustic waves in the ultrasonic frequency range which are then detected by...
Art Olin
(TRIUMF (CA))
16/06/2016, 13:30
Nuclear Physics / Physique nucléaire (DNP-DPN)
Oral (Non-Student) / orale (non-étudiant)
Cold atoms of antihydrogen present a unique opportunity to study the properties of atomic antimatter, and via comparisons with its well-studied matter counterpart, the possibility to test fundamental symmetries such as CPT invariance. In order to probe matter-antimatter symmetry at the highest possible precision, it is essential that the anti-atoms be suspended in vacuum to allow for detailed...
Prof.
Stephanie Simmons
(SFU)
16/06/2016, 13:45
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Invited Speaker / Conférencier invité
The electronic and nuclear spins of shallow donor impurities in silicon have many highly attractive properties as qubits for a semiconductor-based quantum information technology. In addition to being compatible with standard CMOS processing, these qubits are atomically identical, have demonstrated incredibly long relaxation times, T1, and coherence times, T2, and a single-spin technology has...
Melanie Campbell
(University of Waterloo)
16/06/2016, 13:45
Division of Atomic, Molecular and Optical Physics, Canada / Division de la physique atomique, moléculaire et photonique, Canada (DAMOPC-DPAMPC)
Oral (Non-Student) / orale (non-étudiant)
INTRODUCTION:
Emmetropization is an active process involving retinal feedback and is likely driven by the amount of defocus of the image on the retina. Normal emmetropization has long been assumed to result in zero refractive error, but recently this has been questioned. We wish to objectively determine, in chicks, when emmetropization is complete and how much retinal blur due to defocus...
Dr
Mykyta V. Chubynsky
(Department of Physics, University of Ottawa)
16/06/2016, 13:45
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Oral (Non-Student) / orale (non-étudiant)
Electrophoresis is the motion of charged objects in a fluid in an electric field. Electrophoretic separation of DNA molecules by length is important in many biomedical applications. It is normally done in a nanoporous medium, such as a gel, since uniformly charged polymers move at the same speed, regardless of their length. This is because such polymers are electrophoretically free-draining,...
Dr
Patrick de Perio
(Columbia University)
16/06/2016, 13:45
Particle Physics / Physique des particules (PPD)
Invited Speaker / Conférencier invité
The T2K experiment is a long-baseline neutrino oscillation experiment based in Japan. An off-axis, high purity $\nu_\mu$ beam is directed towards a near detector complex (ND280), situated 280 m from the neutrino production target, and the Super-Kamiokande (SK) far detector at 295 km. This talk describes the T2K beam and detectors, including a novel optical transition radiation monitor for...
Louis Poirier
(National Research Council Canada)
16/06/2016, 13:45
Instrumentation and Measurement Physics / Physique des instruments et mesures (DIMP-DPIM)
Oral (Non-Student) / orale (non-étudiant)
Since 1997 the National Research Council Canada has been monitoring ice loads on the Confederation Bridge. It has proven a valuable research platform to examine full scale ice loading events on a sloped structure. Ice loading results from the bridge are still used today in order to validate numerical models which are used to optimize the designs of offshore platforms which could be subjected...
Dr
Philippe Di Stefano
(Queen's University)
16/06/2016, 13:45
Particle Physics / Physique des particules (PPD)
Oral (Non-Student) / orale (non-étudiant)
Potassium-40 (40K) is a background in many rare-event searches, including the DAMA/LIBRA experiment whch claims to have detected the elusive dark matter which may make up most of the matter in the universe. The electron capture of 40K to 40Ar releases ~3 keV X-rays and Auger electrons that fall into DAMA’s region of interest. In most cases, the decay is to an excited state of 40Ar and is...
Prof.
Hanan Anis
(Faculty of Engineering, University of Ottawa)
16/06/2016, 14:00
Physics in Medicine and Biology / Physique en médecine et en biologie (DPMB-DPMB)
Invited Speaker / Conférencier invité
This talk focuses on the investigation and development of an integrated portable optical biosensor for label-free detection of biomolecules, based on enhanced Raman techniques. This enhancement is achieved by integrating hollow core photonic crystal fibers (HC-PCF) and nanoparticles. Challenges in developing a robust, reusable and reliable sensors will be discussed as well as methods to...
Prof.
James Polson
(University of Prince Edward Island)
16/06/2016, 14:00
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Oral (Non-Student) / orale (non-étudiant)
An understanding of the physical properties of polymers in confined environments is essential for the development of nanofluidic devices for DNA analysis, as well as for understanding the organization of bacterial chromosomes. Theoretical treatments of the dynamical behaviour of confined polymers often employ analytical approximations of the conformational free energy. Monte Carlo (MC)...
Martin Connors
(Athabasca University)
16/06/2016, 14:00
Instrumentation and Measurement Physics / Physique des instruments et mesures (DIMP-DPIM)
Oral (Non-Student) / orale (non-étudiant)
More than a decade ago, high function microcontrollers like the Microchip PIC allowed a large step to be made in data acquisition, as compared to fabrication of systems from discrete parts. They had a high level of integrated peripherals relevant to the task, good development environments, and relatively easy programming, including high level languages on the most advanced members of the...
Brigitte Vachon
(McGill University (CA))
16/06/2016, 14:00
Particle Physics / Physique des particules (PPD)
Invited Speaker / Conférencier invité
Following the successful operation of the Large Hadron Collider (LHC)
at collision center-of-mass energy of 7 and 8 TeV in the period
2010-2012, the LHC is now colliding protons at the unprecedented
center-of-mass energy of 13 TeV. Plans are underway to significantly
increase the luminosity of the LHC over the next twenty
years through various upgrades of the accelerator complex. In...
Darren Grant
(University of Alberta)
16/06/2016, 14:15
Particle Physics / Physique des particules (PPD)
Invited Speaker / Conférencier invité
IceCube and its low energy extension DeepCore, located at South Pole Station Antarctica,
has now acquired nearly 5 years of data in the final detector configuration. In that time, IceCube has detected the Universe's highest energy neutrinos to date, and DeepCore has achieved measurements of atmospheric neutrino oscillations near 25 GeV that are competitive with dedicated experiments at lower...
Oleg Rubel
(Department of Materials Science and Engineering, McMaster University)
16/06/2016, 14:15
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Invited Speaker / Conférencier invité
Biomaterials are widely used for manufacturing implants. One of the most common reasons for implant failure is its immune rejection. Changes in the conformation of blood proteins (e.g., fibrinogen) due to their binding to nonbiological surfaces are the initial step in a chain of immunological reactions to foreign bodies. Despite the large number of experimental studies that have been performed...
Mr
Daniel Grimmer
(University of Waterloo)
16/06/2016, 14:15
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Oral (Student, Not in Competition) / Orale (Étudiant(e), pas dans la compétition)
We investigate the general open dynamics of a quantum system S undergoing a bombardment of short (unitary) interactions with an environment made of individual ancillas. We show how decoherence emerges from the fully unitary interaction of S with a large set of (in general non-identical) ancillas, and we compute the master equation that governs the dynamics of the system. Our findings may have...
Kavleen Aulakh
(Carleton University)
16/06/2016, 14:30
Physics in Medicine and Biology / Physique en médecine et en biologie (DPMB-DPMB)
Oral (Student, Not in Competition) / Orale (Étudiant(e), pas dans la compétition)
This paper exploits the effectiveness of neuro-stimulation when induced with a near infrared laser (808 nm). We examine the absorption spectrum of fats, skin, neuromuscular tissues and bones when irradiated trans-cranially through animal models. Thereby, modelling irradiation time versus penetration depth for an optimal dose. The efficacy of high power laser on the viability and the ATP...
Denis Dalidovich
(Perimeter Institute for Theoretical Physics)
16/06/2016, 14:30
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Oral (Non-Student) / orale (non-étudiant)
We study the bipartite von Neumann and $\alpha =2$ Renyi entanglement
entropies for a system of free bosons put on a torus cut into two cylinders.
The torus is formed out of the $L\times L$ square lattice, and the
entropy is supposed to scale as $S = a L + c \gamma (L_A/L) + \cdots$, with
$L_A$ being the size of the partitioned region. $c$ and $a$ are some
constants and the function...
Kevin Earl
(Carleton University)
16/06/2016, 14:30
Particle Physics / Physique des particules (PPD)
Oral (Student, Not in Competition) / Orale (Étudiant(e), pas dans la compétition)
The Twin Higgs model seeks to address the little hierarchy problem by making the Higgs a pseudo-Goldstone of a global $SU(4)$ symmetry that is spontaneously broken to $SU(3)$. Gauge and Yukawa couplings, which explicitly break $SU(4)$, enjoy a discrete $\mathbb{Z}_2$ symmetry that accidentally maintains $SU(4)$ at the quadratic level and therefore keeps the Higgs light. Contrary to most beyond...
Prof.
Paul Corkum
(University of Ottawa)
16/06/2016, 17:00
Herzberg Public, Plenary, and Medal Talks / Conférenciers des sessions Herzberg, plénières et médaillés (CAP-ACP)
Plenary Speaker / Conférencier plénier
Attosecond pulses are generated by electrons that are extracted from a quantum system by tunneling in an intense light pulse and travel through the continuum. Portions of each electron wave packet are forced to re-collide with its parent ion by the oscillating force of the time dependent electric field. Upon re-collision, the electron and ion can re-combine, emitting soft X-ray radiation. This...
