Spin textures in slowly rotating Bose-Einstein Condensates

Details Spin textures in slowly rotating Bose-Einstein Condensates Spin textures in slowly rotating Bose-Einstein Condensates

2003-09-22

arxiv.org/abs/cond-mat/0309511v1

Physics

Condensed Matter

14 pages, 12 low resolution bitmapped figures, RevTeX4. High resolution figures available from author. Suplementary movies ava

Scientific paper

10.1103/PhysRevA.69.033606

Slowly rotating spin-1 Bose-Einstein condensates are studied through a variational approach based upon lowest Landau level calculus. The author finds that in a gas with ferromagnetic interactions, such as $^{87}$Rb, angular momentum is predominantly carried by clusters of two different types of skyrmion textures in the spin-vector order parameter. Conversely, in a gas with antiferromagnetic interactions, such as $^{23}$Na, angular momentum is carried by $\pi$-disclinations in the nematic order parameter which arises from spin fluctuations. For experimentally relevant parameters, the cores of these $\pi$-disclinations are ferromagnetic, and can be imaged with polarized light.

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