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Discrete symmetries and 1/3-quantum vortices in condensates of F=2 cold atoms

Gordon W. Semenoff·Fei Zhou
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Abstract

In this Letter we study discrete symmetries of mean field manifolds of condensates of F=2 cold atoms, and various unconventional quantum vortices. Discrete quaternion symmetries result in two species of spin defects that can only appear in integer vortices while {\em cyclic} symmetries are found to result in a phase shift of $2π/3$ (or $4π/3$) and therefore 1/3- (or 2/3-) quantum vortices in condensates. We also briefly discuss 1/3-quantum vortices in condensates of trimers.

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Gordon W. Semenoff, Fei Zhou. 2007-03-08. Discrete symmetries and 1/3-quantum vortices in condensates of F=2 cold atoms. https://doi.org/10.1103/physrevlett.98.100401

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