%0 Journal Article
%T Josephson dynamics of a spin-orbit coupled Bose-Einstein condensate in a double well potential
%A Dan-Wei Zhang
%A Li-Bin Fu
%A Z. D. Wang
%A Shi-Liang Zhu
%J Physics
%D 2012
%I arXiv
%R 10.1103/PhysRevA.85.043609
%X We investigate the quantum dynamics of an experimentally realized spin-orbit coupled Bose-Einstein condensate in a double well potential. The spin-orbit coupling can significantly enhance the atomic inter-well tunneling. We find the coexistence of internal and external Josephson effects in the system, which are moreover inherently coupled in a complicated form even in the absence of interatomic interactions. Moreover, we show that the spin-dependent tunneling between two wells can induce a net atomic spin current referred as spin Josephson effects. Such novel spin Josephson effects can be observable for realistically experimental conditions.
%U http://arxiv.org/abs/1201.4306v1