Spin Hall effects for cold atoms in a light induced gauge potential
Shi-Liang Zhu, Hao Fu, C. -J. Wu, S. -C. Zhang, L. -M. Duan
Abstract
We propose an experimental scheme to observe spin Hall effects with cold atoms in a light induced gauge potential. Under an appropriate configuration, the cold atoms moving in a spatially varying laser field experience an effective spin-dependent gauge potential. Through numerical simulation, we demonstrate that such a gauge field leads to observable spin Hall currents under realistic conditions. We also discuss the quantum spin Hall state in an optical lattice.
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