Observation of<i>Zitterbewegung</i>in a spin-orbit-coupled Bose-Einstein condensate
Observation of<i>Zitterbewegung</i>in a spin-orbit-coupled Bose-Einstein condensate
Spin-orbit-coupled ultracold atoms provide an intriguing new avenue for the study of rich spin dynamics in superfluids. In this Rapid Communication, we observe Zitterbewegung, the simultaneous velocity (thus position) and spin oscillations, of neutral atoms between two spin-orbit-coupled bands in a Bose-Einstein condensate (BEC) through sudden quantum quenches of the …