Waranont Anukool
(Department of Physics and Materials Science, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand)
21/05/2015, 08:00
Atomic Physics, Quantum Physics, Molecular and Chemical Physics
Oral presentation
The adiabatic interaction between Rydberg atom and ground-state atom of Rb2 was numerically investigated. The semi-molecular potentials were calculated by matching the wave function of Rydberg electron using Kirchhoff integral with Coulomb Green’s function that corporates the quantum defect correction. The interaction potential was employed to pinpoint the principle quantum number of...
Mr
Nuttanan Tanasanchai
(Department of Physics and Materials Science, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand),
Waranont Anukool
(Department of Physics and Materials Science, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand)
21/05/2015, 08:15
Atomic Physics, Quantum Physics, Molecular and Chemical Physics
Oral presentation
We have trapped a laser-cooled single rubidium-85 atom in an optical dipole trap using sub-Poissonian loading scheme. The trap beam with 4mK depth was produced with 830nm focused laser beam. Our optical circuits based on the two-beam trap and homemade equipments are described. The photograph of a single rubidium-85 atom taken for the first time in Thailand is presented.
Rattakorn Kaewuam
(Department of Physics and Materials Science, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand),
Waranont Anukool
(Department of Physics and Materials Science, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand)
21/05/2015, 08:30
Atomic Physics, Quantum Physics, Molecular and Chemical Physics
Oral presentation
We use the density matrix formulation to study the dynamic of atom-photon interaction of Rb-85 atoms under the cooling and repumping laser fields in a magneto-optical trap (MOT). The spontaneous emission process is taken into account using the fully-quantized theory. The obtained master equations are numerically solved for the four-level system including two levels of $5^2S_{1/2}F=2,3$ and two...
Kritsana Srakowl
(Department of Physics and Materials Science, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand)
21/05/2015, 08:45
Atomic Physics, Quantum Physics, Molecular and Chemical Physics
Oral presentation
We investigate applicability of a novel atom interferometer consisting of two concentric rings for precision measurements. The investigation is carried out with a computer simulation of Gross-Pitaevskii equations which monitors low energy vibrational modes inside of the interferometer under various ring geometries. From each eigenmodes, the fringe visibility between thermal ensemble and...
Jindaratsamee Phrompao
(Department of Physics and Materials Science, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand)
21/05/2015, 09:00
Atomic Physics, Quantum Physics, Molecular and Chemical Physics
Oral presentation
We numerically calculate transmission, reflection and cavity-modes inside a Fabry-Perot interferometer using the split-operator method. Unlike traditional methods, the cavity's eigenmodes are computed from temporal propagation instead of spatial propagation which makes the calculation of cavity scanning more practical.
Also the split-operator coexist with master equations of fully quantum...
Apichayaporn Ratkata
(Department of Physics and Materials Science, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand)
21/05/2015, 09:15
Atomic Physics, Quantum Physics, Molecular and Chemical Physics
Oral presentation
We consider the efficient creation of heralded dicke states in an atomic ensemble trapped in a high finesse optical cavity. Weak resonant light in free-space mode transverse to the cavity is efficiently absorbed by the optically dense sample. Subsequent stimulated Raman scattering into the cavity mode dominates over free space scattering because of the high single atom cooperativity of the...
Ms
Wasuporn Hirunsit
(Department of Physics and Materials Science, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand)
21/05/2015, 09:30
Atomic Physics, Quantum Physics, Molecular and Chemical Physics
Oral presentation
Lead-free calcium zirconate (CaZrO3) is an important raw material for industry applications because of its excellent thermal and electrical properties such as, high dielectric constant and low dielectric loss [1]. However, in order to achieve pure CaZrO3 powder, high calcining temperatures ( 1300 $^\circ$C) and long dwelling times for solid reactions between the CaCO3 and ZrO2 powders are...
Mr
Theerapat Tansuwannont
(Department of Physics, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand)
21/05/2015, 09:45
Atomic Physics, Quantum Physics, Molecular and Chemical Physics
Oral presentation
Quantum algorithm is an algorithm for solving mathematical problems using quantum systems encoded as information, which is found to outperform classical algorithms. The objective of this study is to develop a quantum algorithm for finding the roots of $n^{\mathrm{th}}$ degree polynomials where $n$ is any positive integer. In classical algorithm, the resources required for solving this problem...
Mr
Hariphan Philathong
(Department of Physics and Materials Science, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand)
21/05/2015, 10:00
Atomic Physics, Quantum Physics, Molecular and Chemical Physics
Oral presentation
Synthetic magnetic field is recently demonstrated theoretically and experimentally in an ensemble of neutral atoms through Rashba effect. In this presentation, Schwinger’s oscillator model is used to demonstrate the Rashba effect in favor of traditional angular momentum bases. The Schwinger’s model is useful in setting up the master equation of atoms interacting with field both in free space...
