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arXiv · 1204.0202

Topological classification of vortex-core structures of spin-1 Bose-Einstein condensates

Shingo Kobayashi·Yuki Kawaguchi·Muneto Nitta·Masahito Ueda
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Abstract

We classify vortex-core structures according to the topology of the order parameter space. By developing a method to characterize how the order parameter changes inside the vortex core. We apply this method to the spin-1 Bose-Einstein condensates and show that the vortex-core structures are classified by winding numbers that are locally defined in the core region. We also show that a vortex-core structure with a nontrivial winding number can be stabilized under a negative quadratic Zeeman effect.

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Shingo Kobayashi, Yuki Kawaguchi, Muneto Nitta, Masahito Ueda. 2012-04-01. Topological classification of vortex-core structures of spin-1 Bose-Einstein condensates. https://doi.org/10.1103/physreva.86.023612

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