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Vortex Tiling in a Spin-2 Spinor Bose-Einstein Condensate

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arxiv 0907.3716 v2 pith:HIL7ICX5 submitted 2009-07-21 cond-mat.quant-gas cond-mat.other

Michikazu Kobayashi , Yuki Kawaguchi , Masahito Ueda This is my paper · ORCID
classification cond-mat.quant-gascond-mat.other
keywords coreordervortexcondensateparameterspinspin-2symmetry
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abstract

We point out that the internal spin symmetry of the order parameter manifests itself at the core of a fractional vortex in real space without spin-orbit coupling. Such symmetry breaking arises from a topological constraint and the commensurability between spin symmetries of the order parameters inside and outside the core. Our prediction can be applied to probe the cyclic order parameter in a rotating spin-2 $^{87}$Rb condensate as a non-circular vortex core in a biaxial nematic state.

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  1. Microscopic description of axisymmetric vortices in $^{3}P_{2}$ superfluids

    cond-mat.supr-con 2019-08 conditional novelty 8.0 of 10

    Microscopic calculations show the o vortex is the most stable axisymmetric vortex in 3P2 superfluids under strong magnetic fields and hosts two zero-energy Majorana fermions in its core.

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