Monopole core instability and Alice rings in spinor Bose-Einstein condensates
arXiv:cond-mat/0307651 · doi:10.1103/PhysRevLett.91.190402
Abstract
We show how the length scale hierarchy, resulting from different interaction strengths in an optically-trapped spin-1 sodium-23 Bose-Einstein condensate, can lead to intriguing core deformations in singular topological defects. In particular, a point defect can be unstable with respect to the formation of a stable half-quantum vortex ring (an Alice ring), providing a realistic scheme to use dissipation as a sophisticated state engineering tool. We compute the threshold for stability of the point monopole, which is beyond the current experimental regime.
4 pages, 3 figures
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Cited by in corpus (76)
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