Oscillation of the spin-currents of cold atoms on a ring due to light-induced spin–orbit coupling*
Xie Wen-Fanga), He Yan-Zhangb), Bao Cheng-Guangb)†
       
Pz of a two-body system of Rb atoms versus τ with interaction Vij = gδ ( θi − θj ), g = 0 (solid), 100 g eff (dash), and 2000 g eff (dash–dot). The initial state has ϕ = π (a) and ϕ = 0 (b). . The other parameters are the same as those in Fig. 4 .