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arXiv · 1905.07217

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

Emi Yukawa·Masahito Ueda
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Abstract

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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Emi Yukawa, Masahito Ueda. 2019-05-17. Morphological Superfluid in a Nonmagnetic Spin-2 Bose-Einstein Condensate. https://doi.org/10.1103/physrevlett.124.105301

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