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Morphological Superfluid in a Nonmagnetic Spin-2 Bose-Einstein Condensate

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arxiv 1905.07217 v1 pith:A6EE35U6 submitted 2019-05-17 cond-mat.quant-gas

Emi Yukawa , Masahito Ueda This is my paper · ORCID
classification cond-mat.quant-gas
keywords bose-einsteincondensatenonmagneticspin-2symmetrydiscussedexperimentalfind
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The two known mechanisms for superflow are the gradient of the U(1) phase and the spin-orbit-gauge symmetry. We find the third mechanism, namely a spatial variation of the order-parameter morphology protected by a hidden su(2) symmetry in a nonmagnetic spin-2 Bose-Einstein condensate. Possible experimental situations are also discussed.

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