Title: [Joint CQSE & NCTS Seminar] Quantum Simulators with Two Species of Atoms: Progress, Challenges, and Future Applications
Speaker: Prof. Shih-Kuang Tung (National Tsing Hua University)
Time: May 5, 2023, 14:30-15:30
Place: NCTS Physics Lecture Hall, 4F, Chee-Chun Leung Cosmology Hall, NTU
Online: https://nationaltaiwanuniversity-zbh.my.webex.com/nationaltaiwanuniversity-zbh.my/j.php?MTID=m210715f40b11b5794be46cfbb95824d1

Abstract:
Atoms are ideal quantum objects; abundant in nature and each atom of the
same kind is perfectly identical. Due to their universal properties, atoms have been used
for quantum simulations for decades. With atomic quantum simulators, numerous
important many-body models have been observed and studied, including the Superfluid-
Mott insulator transition, Tonks-Girardeau gas, BEC-BCS crossover, and BKT
transition in 2D atomic systems. As our ability to control these simulators advances, we
also seek to add new complexity to them, for example, the integration of a second
species. In this talk, I will report on our progress in creating a quantum simulator with
two species of atoms and discuss our plans for future applications.

Biography:
Shih-Kuang Tung
Department of Physics, National Tsing Hua University
101 Section 2 Kuang Fu Road, Hsinchu, Taiwan 30013
Office: (03) 5162582
zekest@phys.nthu.edu.tw
Ph.D. in Physics, JILA (University of Colorado at Boulder and NIST) 2010
Thesis: Probing an Interacting Bose Gas in a Quasi-Two-Dimensional Trap
Advisor: Prof. Eric Cornell

Appointments
• Assistant professor, National Tsing Hua University (Taiwan), 2016/8 – present

Publications
1. W.-X. L, Y.-D. Chen, Y. -T. Sun, S. Tung, and Paul S. Julienne, Feshbach resonanes in an ultracold 7Li133Cs Bose-Bose mixture, Phys. Rev. A, 106, 023317 (2022).
2. Y.-D. Chen, W.-X. Li, M.-E. Chou, C.-S. Kuo, C.-S. Li, and Tung, S., Lithium-cesium slow beam from a two-dimensional magneto-optical trap, Phys. Rev. A 103, 023102 (2021).
3. S. Tung, K. Jim´enez-Garc´ıa, J. Johansen, C. Parker, and C. Chin, Geometric Scaling of Efimov States in a 6Li133Cs Mixture, Phys. Rev. Lett., 113, 240402 (2014).
4. L.-C. Ha, C.-L. Hung, X. Zhang, U. Eismann, S. Tung, and C. Chin, Strongly Interacting Two-Dimensional Bose Gases, Phys. Rev. Lett., 110, 145302 (2013).
5. S. Tung, C. Parker, J. Johansen, C. Chin, Y. Wang, and P. Julienne, Ultracold Mixture of 6Li and 133Cs Atoms with Tunable Interactions, Phys. Rev. A., 87, 010702(R) (2013).
6. X. Zhang, C.-L. Hung, S. Tung, and C. Chin, Observation of Quantum Criticality with Ultracold Atoms in Optical Lattices, Science 335, 1070 (2012).
7. C.-L. Hung, X. Zhang, L.-C. Ha, S. Tung, N. Gemelke, and C. Chin, Extracting Density-Density Correlations from In-Situ Images of Atomic Quantum Gases, New. J. Phys. 13, 075019 (2011).
8. X. Zhang, C.-L. Hung, S. Tung, N. Gemelke, and C. Chin, Exploring Quantum Criticality Based on Ultracold Atoms in Optical Lattices, New. J. Phys. 13, 045011 (2011).
9. S. Tung, G. Lamporesi, D. Lobser, L. Xia, E. A. Cornell, Observation of Presuperfluid Regime in a Two-Dimensional Bose Gas, Phys. Rev. Lett. 105, 230408 (2010).
10. V. Schweikhard, S. Tung, S, and E. A. Cornell, Vortex Proliferation in the Berezinskii-KosterlitzThouless Regime on a Two-Dimensional Lattice of Bose-Einstein Condensates, Phys. Rev. Lett. 99, 030401 (2007).
11. S. Tung, V. Schweikhard, and E. A. Cornell, Observation of Vortex Pinning in Bose-Einstein Condensates, Phys. Rev. Lett. 97, 240402 (2006).
12. I. Coddington, P. C. Haljan, P. Engels, V. Schweikhard, S. Tung, and E. A. Cornell, Experimental Studies of Equilibrium Vortex Properties in a Bose-Condensed Gas, Phys. Rev. A 70, 063607 (2004).
13. V. Schweikhard, I. Coddington, P. Engels, S. Tung, and E. A. Cornell, Vortex-Lattice Dynamics in Rotating Spinor Bose-Einstein Condensates, Phys. Rev. Lett., 89, 210403 (2004).