Monopole Core Instability and Alice Rings in Spinor Bose-Einstein Condensates

J. Ruostekoski and J. R. Anglin
Phys. Rev. Lett. 91, 190402 – Published 3 November 2003; Erratum Phys. Rev. Lett. 97, 069902 (2006)

Abstract

We show how the length scale hierarchy, resulting from different interaction strengths in an optically trapped spin-1 Na23 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.

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  • Received 17 July 2003

DOI:https://doi.org/10.1103/PhysRevLett.91.190402

©2003 American Physical Society

Erratum

Authors & Affiliations

J. Ruostekoski1 and J. R. Anglin2

  • 1Department of Physical Sciences, University of Hertfordshire, Hatfield, Herts, AL10 9AB, United Kingdom
  • 2Center for Ultracold Atoms, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, USA

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Issue

Vol. 91, Iss. 19 — 7 November 2003

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