Spin current in a spinor Bose–Einstein condensate induced by a gradient magnetic field

Abstract

In this paper, we develop a research of spin currents in a 23Na spinor Bose-Einstein condensate (BEC) by applying a magnetic field gradient. The spin current is successfully induced by the spin-dependent force arising from the magnetic field gradient. The dynamics of the spin components under the magnetic force is investigated. The study is promising to be extended to produce a longer spin-coherence and enhance the sensitivity of the spin-mixing interferometry in a spinor BEC.