Journal
PHYSICAL REVIEW A
Volume 79, Issue 3, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.79.033615
Keywords
Bose-Einstein condensation; magnetic fields; rubidium; vortices
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Funding
- NSFC [10674141]
- National 973 program [2006CB921205]
- Chinese Academy of Sciences
- NSF
- Robert A. Welch Foundation [C-1669]
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We propose to create vortices in spin-1 condensates via magnetic dipole-dipole interaction. Starting with a polarized condensate prepared under large axial magnetic field, we show that by gradually inverting the field, population transfer among different spin states can be realized in a controlled manner. Under optimal condition, we generate a doubly quantized vortex state containing nearly all atoms in the condensate. The resulting vortex state is a direct manifestation of the dipole-dipole interaction and spin textures in spinor condensates. We also point out that the whole process can be qualitatively described by a simple three-level rapid adiabatic passage model.
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