Chinese Journal of Quantum Electronics, Volume. 26, Issue 2, 187(2009)
Light-induced spin Hall effects in cold atoms
The dynamics of cold atoms interacting with external laser fields is investigated. For multilevel atoms interacting with external laser fields, e.g., [EQUATION]Li, two-fold degenerate dressed states are obtained under appropriate parameters configuration, which may be defined as spin-up and spin-down in analogy with the spin-1/2 charged system. Further analysis shows that different spin states will feel spin-dependent gauge fields. When the cold atoms move in spatially varying laser fields, the effective spin-dependent gauge potential will lead to spin Hall effects as well as observable spin Hall currents.
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ZHANG Xin-ding. Light-induced spin Hall effects in cold atoms[J]. Chinese Journal of Quantum Electronics, 2009, 26(2): 187
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Received: Apr. 14, 2008
Accepted: --
Published Online: May. 24, 2010
The Author Email: Xin-ding ZHANG (xdzhang2000@gmail.com)
CSTR:32186.14.