Spin-vortex nucleation in a Bose-Einstein condensate by a spin-dependent rotating trap

Abstract

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 with an antiferromagnetic interaction. In contrast to the vortex nucleation in a scalar BEC, the spin-vortex nucleation occurs at a low rotation frequency ($\simeq 0.1{\omega }_{\perp }$ with ${\omega }_{\perp }$ being the radial trap frequency) in a short nucleation time $\simeq 50$ ms without dissipation. A method for nondestructive measurement of half-quantum vortices is discussed.

6 pages, 3 figures

References in corpus (6)

• Spontaneous symmetry breaking in a quenched ferromagnetic spinor Bose condensate
• Quantized Rotation of Atoms From Photons with Orbital Angular Momentum
• Dynamical Creation of Fractionalized Vortices and Vortex Lattices
• Spinor Dynamics in an Antiferromagnetic Spin-1 Condensate
• Topological defect formation in quenched ferromagnetic Bose-Einstein condensates
• Breaking of Chiral Symmetry and Spontaneous Rotation in a Spinor Bose-Einstein Condensate

Cited by in corpus (8)

• Spinor Bose-Einstein condensates
• Conical intersections in laboratory coordinates with ultracold molecules
• Dynamics of a vortex dipole across a magnetic phase boundary in a spinor Bose-Einstein condensate
• Finite-temperature phase transitions in quasi-two-dimensional spin-1 Bose gases
• Magnetization of a half-quantum vortex in a spinor Bose-Einstein condensate
• The non-Abelian bosonic quantum ring
• Equilibrium trapping of cold atoms using dipole and radiative forces in an optical trap
• Phase separation and metastability in a mixture of spin-1 and spin-2 Bose-Einstein condensates