Monopole core instability and Alice rings in spinor Bose-Einstein condensates

Ruostekoski, J. and Anglin, J.R. (2003) Monopole core instability and Alice rings in spinor Bose-Einstein condensates. Physical review letters, 91 (19). ISSN 1079-7114

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Abstract

We show how the length scale hierarchy, resulting from different interaction strengths in an optically-trapped spin-1 Na-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.

Item Type:
Journal Article
Journal or Publication Title:
Physical review letters
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100
Subjects:
ID Code:
123685
Deposited By:
Deposited On:
26 Feb 2018 10:58
Refereed?:
Yes
Published?:
Published
Last Modified:
01 Dec 2020 05:28