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Vortices in spin-0 superfluids carry magnetic flux

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arxiv 2112.04595 v2 pith:HBOFOZQL submitted 2021-12-08 cond-mat.quant-gas hep-thnucl-th

classification cond-mat.quant-gashep-thnucl-th
keywords magneticvorticesanalysiscarryeffectfluxsuperfluidsuperfluids
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abstract

Vortices in spin-$0$ superfluids generically carry magnetic fields inside their cores, so that even neutral superfluid vortices may be thought of as magnetic flux tubes. We give a systematic analysis of this `vortex magnetic effect' using effective field theory, clarifying earlier literature on the subject. Our analysis shows that in superfluid Helium-$4$ the vortex magnetic effect may be large enough to be experimentally detectable.

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