Spin Hall effects for cold atoms in a light-induced gauge potential.

  title={Spin Hall effects for cold atoms in a light-induced gauge potential.},
  author={Shi-Liang Zhu and Hao Fu and C-J Wu and S.-C. Zhang and Luming Duan},
  journal={Physical review letters},
  volume={97 24},
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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