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Giant hole and circular superflow in a fast rotating Bose-Einstein condensate

Kenichi Kasamatsu·Makoto Tsubota·Masahito Ueda
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Abstract

A fast rotating Bose-Einstein condensate confined in a quadratic-plus-quartic potential is found to dynamically generate a "giant vortex" that absorbs all phase singularities into a central low density hole, thereby sustaining a quasi-one-dimensional circular superflow at a supersonic speed.

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Kenichi Kasamatsu, Makoto Tsubota, Masahito Ueda. 2002-11-12. Giant hole and circular superflow in a fast rotating Bose-Einstein condensate. https://doi.org/10.1103/physreva.66.053606

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