High Controllable and Robust 2D Spin-Orbit Coupling for Quantum Gases
Abstract
We report the realization of a robust and highly controllable two-dimensional (2D) spin-orbit (SO) coupling with topological non-trivial band structure. By applying a retro-reflected 2D optical lattice, phase tunable Raman couplings are formed into the anti-symmetric Raman lattice structure, and generate the 2D SO coupling with precise inversion and symmetries, leading to considerably enlarged topological regions. The life time of the 2D SO coupled Bose-Einstein condensate reaches several seconds, which enables the exploring of fine tuning interaction effects. These essential advantages of the present new realization open the door to explore exotic quantum many-body effects and non-equilibrium dynamics with novel topology.
Cite
@article{arxiv.1710.00717,
title = {High Controllable and Robust 2D Spin-Orbit Coupling for Quantum Gases},
author = {Wei Sun and Bao-Zong Wang and Xiao-Tian Xu and Chang-Rui Yi and Long Zhang and Zhan Wu and Youjin Deng and Xiong-Jun Liu and Shuai Chen and Jian-Wei Pan},
journal= {arXiv preprint arXiv:1710.00717},
year = {2018}
}
Comments
6 pages, 4 figures