Pauline Yzombard
(Laboratoire Aime Cotton CNRS (FR))
The AEGIS collaboration aims to create atoms of anti-hydrogen ($\bar{H}$) and to study the impact of gravity force on it.
In a penning trap, a 3-body-reaction between an anti-proton and an atom of Positronium (Ps=e+ + e-) forms an $\bar{H}$. Then, $\bar{H}$ beam is horizontally accelerated to exit the trap and gravity measurements are performed via a deflectometer.
To improve the...
Mr
M. Sadegh Ebrahimi
(GSI Darmstadt and Universität Heidelberg)
Magnetic moments of electrons bound in highly charged ions provide access to effects of quantum electrodynamics (QED) in the extreme fields close to the ionic nucleus. The cryogenic Penning trap setup ARTEMIS is dedicated to determine the electronic $g$-factors of highly charged ions such as boron-like argon (Ar$^{13+}$) via the method of double-resonance spectroscopy. A closed cycle between...
Mr
Arindam Kr. Sikdar
(Variable Energy Cyclotron Centre)
The development of Cryogenic Penning trap at VECC has reached an advanced stage and the system would soon be commissioned. In this work, we shall describe the simulation, design, and fabrication of a Cryogenic Penning trap system and study its applications. The Penning trap assembly and its associated electronics will be housed in the liquid helium filled bore of a 5-Tesla superconducting...
Mr
Pradip Mondal
(Department of Physics, Indian Institute of Technology Kharagpur, Kharagpur-721302, India.)
Vortex states in Bose-Einstein condensate (BEC) play an essential role in macroscopic quantum phenomena like superfluidity and superconductivity. There have been studies to detect and measure the angular momentum of a BEC vortex state using different techniques, like, imaging the density distribution after free expansion , interference between vortex states , and exciting the quadrupole mode...
S. Patra
(LaserLaB and Department of Physics and Astronomy, VU University, Amsterdam)
High-precision spectroscopy using resonance-enhanced multi-photon dissociation (REMPD) of the (v,L): (0,2) – (8,3) overtone of trapped, laser-cooled HD$^+$ molecular ions has been demonstrated with an unprecedented resolution of 0.8 ppb [1]. The resolution achieved is largely limited by Doppler broadening. To overcome this we are now implementing Doppler-free two-photon spectroscopy for HD$^+$...
Mr
Joschka Wolf
(Institut für Quantenmaterie, Universität Ulm)
We investigate the interaction of a laser-cooled trapped ion ($^{138}$Ba$^+$, $^{87}$Rb$^+$ or $^{87}$Rb$_2^+$) with an ultra-cold cloud of optically confined $^{87}$Rb atoms. The ion is held in a linear Paul trap and is immersed in the center of
the cold atomic cloud.
By controlling a set of parameters, like changing the micromotion energy, we can manipulate the atom-ion collisions and...
Mr
Manu Bajpai
(Institute for Plasma research, Gandhinagar, India)
**Estimation of RF heating and cooling rates of an electron-positron plasma confined in a Combined Trap**
Manu Bajpai
*Institute for Plasma Research, Near Indira Bridge, Gandhinagar - 382 428, INDIA*
**Abstract**
The cross-sections have been estimated for heating of confined electrons and positrons due to two type of RF driven collisions, (a) elastic collisions between...
Stefan Knauer
(Ernst Moritz Arndt Universität Greifswald)
A multipole ring-electrode trap was built for systematic studies of cluster anions. The Coulomb barrier and electron binding energies of multiply-charged metal clusters are experimentally hardly investigated. Because poly anionic metal-clusters do not exist in nature, they have to be produced in laboratories by cluster electron collision. This can be achieved by combinations of cluster sources...
Alvaro Oliveira
(Univ. Federal do Rio de Janeiro (BR)),
Rodrigo Lage Sacramento
(Univ. Federal do Rio de Janeiro (BR))
We present the Matrix Isolation Sublimation (MISu) technique for generating cryogenic beams of atoms and molecules for high precision spectroscopy. We have produced beams of Cr, Li, H and Li$_2$. We have measured temperatures from $16$ K all the way down to $1$ K, depending on the sublimation regime. The cold beams will be used for high-precision laser spectroscopy and for loading magnetic...
Mr
Sebastian Grondkowski
(Institut für Quantenoptik, Leibniz Universität Hannover, Welfengarten 1, 30167 Hannover, Germany)
Surface-electrode traps, microwave-quantum-logic techniques, field-insensitive $^{9}$Be$^{+}$ qubit, reconfigurable rf voltages, microwave pulse-shaping, cryogenic ion trap
Mr
Lavkesh Lachhvani
(Institute for Plasma Research)
Stability, equilibrium and transport of electron plasmas in cylindrical traps have been comprehensively investigated owing to their exceptional confinement properties[1]. In recent times non-neutral plasmas in various toroidal configurations have also raised considerable interest ascribed to the capability of producing equal mass plasmas in such configurations[2], [3]. Investigations of...
Dinko Atanasov
(Max-Planck-Institute for Nuclear Physics (DE))
The four trap mass spectrometer ISOLTRAP is an experiment primarily dedicated to precision mass measurements of
radioactive nuclides. It is located at ISOLDE allowing investigations of ions produced via spallation, fission or fragmentation by impinging a 1.4 GeV
proton beam on hot targets. The current ISOLTRAP setup consists of a linear segmented radio-frequency cooler and buncher, a...
Myneni Niranjan
(Raman Research Institute, Bangalore)
We present a combined ion-atom trap which consists of a linear Paul trap and a magneto optical trap (MOT). It traps ions and atoms simultaneously with spatial overlap, and enables us to study interaction between the trapped ions and cold atoms.[1]
In the experimental configuration described above, cooling of ions has been unambiguously established even for equal mass of ion and the atom due...
Jan Christoph Heip
(Physikalisch-Technische Bundesanstalt)
Molecular ions have a rich level structure and therefore are useful for applications ranging from precision measurements to quantum information processing. Besides the motional degrees of freedom, they exhibit also vibrational and rotational degrees of freedom, rendering direct laser cooling a challenge. We demonstrate sympathetic motional ground state cooling of a $^{24}$MgH$^+$ molecular ion...
Fabian Wolf
(Physikalisch-Technische Bundesanstalt, Braunschweig, Germany)
Compared to atoms, molecules offer a rich level structure, permanent dipole moment, large internal electric field and additional symmetries. Therefore, molecular quantum systems are well suited for many applications such as quantum computing, high precision spectroscopy, test of fundamental physics, as well as quantum chemistry and astrochemistry.
However, in general direct laser cooling...
Dr
Balint Radics
(RIKEN)
Poster is presented on CTMC simulation and antihydrogen level population calculation results.
Ref: Phys. Rev. A 90, 032704 (2014)
Mr
Rodney Orford
(McGill University/Argonne National Lab)
The Canadian Penning trap (CPT) is currently located at Argonne National Laboratory in the CARIBU facility where intense beams of neutron-rich nuclei are produced from the spontaneous fission of $^{252}$Cf. The focus of the current CPT campaign is to provide precision mass measurements of nuclides involved in the astrophysical r-process. To date more than 110 nuclides have been measured to an...
Mr
William Cairncross
(JILA, NIST and University of Colorado, and Department of Physics, University of Colorado)
Trapped molecular ions have the potential to provide several significant advantages in precision measurement experiments due to the ease with which they can be trapped and the long coherence times possible in ground or metastable states. Here we demonstrate precision spectroscopy using clouds of HfF$^+$ confined in a Paul trap for stringent tests of time-reversal symmetry by measuring the...
Christa Flühmann
(eduGAIN - ETHZ - ETH Zurich)
In our laboratory, we focus on quantum state engineering with beryllium and calcium ions, including recent demonstrations of squeezed states and spin-motion entangled state interferometry by combining reservoir engineering with unitary operations [(Kienzler et al.)][1]. In order to improve the quality with which we control our ions, we are currently working to upgrade the system.
One of the...
Peter Micke
(Physikalisch-Technische Bundesanstalt)
P. Micke$^{1,2}$, T. Leopold$^1$, L. Schmöger$^{1,2}$, M. Schwarz$^{1,2}$, O. O. Versolato$^{1,2}$, M. Kohnen$^{1,3}$, J. H. Ullrich$^{1,2}$, J. R. Crespo López-Urrutia$^2$, and P. O. Schmidt$^{1,3}$
$^1$ Physikalisch-Technische Bundesanstalt, 38116 Braunschweig, Germany,
$^2$ Max-Planck-Institut für Kernphysik, 69117 Heidelberg, Germany,
$^3$ Leibniz Universität Hannover, 30167...
Ms
Teresa Feld
(Institut für Quantenoptik, Leibniz Universität Hannover)
CPT test, g-factor measurement, quantum logic operations, optical manipulation system, imaging system
