Creating Vortex Rings and Three-Dimensional Skyrmions in Bose-Einstein Condensates

J. Ruostekoski and J. R. Anglin
Phys. Rev. Lett. 86, 3934 – Published 30 April 2001
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Abstract

We propose a method of generating a vortex ring in a Bose-Einstein condensate by means of electromagnetically induced atomic transitions. Some remnant population of atoms in a second internal state remains within the toroidal trap formed by the mean-field repulsion of the vortex ring. This population can be removed, or it can be made to flow around the torus (i.e., within the vortex ring). If this flow has a unit topological winding number, the entire structure formed by the two condensates is an example of a three-dimensional Skyrmion texture.

  • Received 31 October 2000

DOI:https://doi.org/10.1103/PhysRevLett.86.3934

©2001 American Physical Society

Authors & Affiliations

J. Ruostekoski1 and J. R. Anglin2

  • 1Department of Physical Sciences, University of Hertfordshire, Hatfield, Herts AL10 9AB, United Kingdom
  • 2Institute for Theoretical Atomic and Molecular Physics, Harvard-Smithsonian Center for Astrophysics, Cambridge, Massachusetts 02135

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Vol. 86, Iss. 18 — 30 April 2001

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