1207.3707 (Fei-Jie Huang et al.)

Higgs Excitation in Cold Atoms with Spin-orbit Coupling    [PDF]

Fei-Jie Huang, Qi-Hui Chen, Wu-Ming Liu

We investigate the Higgs excitation in cold atoms induced by non-Abelian gauge potential. We demonstrate that when a non-Abelian gauge potential reduces to Abelian potential, only its Abelian part suits to construct spin-orbit coupling, and its non-Abelian part emerges as a Higgs excitation. The Higgs excitation induces the generation of mass of the non-Abelian gauge field, and it can affect the spin Hall currents which are emerged by the spin-orbit coupling. We also discuss the observation of these phenomena in real experiment.

View original: http://arxiv.org/abs/1207.3707