Spin-vortex nucleation in a Bose-Einstein condensate by a spin-dependent rotating trap
Spin-vortex nucleation in a Bose-Einstein condensate by a spin-dependent rotating trap
A method to produce a spin-dependent rotating potential using near-resonant circularly polarized laser beams is proposed. It is shown that half-quantum vortices are nucleated in a spinor Bose-Einstein condensate (BEC) with an antiferromagnetic interaction. In contrast to the vortex nucleation in a scalar BEC, the spin-vortex nucleation occurs at a …