Spin-orbit coupling and Berry phase with ultracold atoms in 2D optical lattices

2003/11/30 by Artem M. Dudarev, Roberto B. Diener, Iacopo Carusotto +1
Physics and Astronomy · #cond-mat.soft

paper · pdf · doi:10.1103/physrevlett.92.153005

published as Phys. Rev. Lett. 92, 153005 (2004). · 3 figures

arxiv created 2004/02/21 · arxiv updated 2009/12/01

Abstract

We show how spin-orbit coupling and Berry phase can appear in two-dimensional optical lattices by coupling atoms' internal degrees of freedom to radiation. The Rashba Hamiltonian, a standard description of spin-orbit coupling for two-dimensional electrons, is obtained for the atoms under certain circumstances. We discuss the possibility of observing associated phenomena, such as the anomalous Hall and spin Hall effects, with cold atoms in optical lattices.

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