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Creating vortex rings and three-dimensional Skyrmions in Bose-Einstein condensates

Creating vortex rings and three-dimensional Skyrmions in Bose-Einstein condensates
Creating vortex rings and three-dimensional Skyrmions in Bose-Einstein condensates
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 unit topological winding number, the entire structure formed by the two condensates is an example of a three-dimensional skyrmion texture.
0031-9007
3934-3937
Ruostekoski, J.
2beb155e-64b0-4ee9-9cfe-079947a9c9f4
Anglin, J.R.
8b1faf2d-d04e-43e6-be9e-e7d0da924367
Ruostekoski, J.
2beb155e-64b0-4ee9-9cfe-079947a9c9f4
Anglin, J.R.
8b1faf2d-d04e-43e6-be9e-e7d0da924367

Ruostekoski, J. and Anglin, J.R. (2001) Creating vortex rings and three-dimensional Skyrmions in Bose-Einstein condensates. Physical Review Letters, 86 (18), 3934-3937. (doi:10.1103/PhysRevLett.86.3934). (PMID:11328064)

Record type: Article

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 unit topological winding number, the entire structure formed by the two condensates is an example of a three-dimensional skyrmion texture.

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Published date: April 2001

Identifiers

Local EPrints ID: 29347
URI: http://eprints.soton.ac.uk/id/eprint/29347
ISSN: 0031-9007
PURE UUID: 457ceb89-f99f-4879-9bff-dda9fa1c8627

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Date deposited: 10 May 2006
Last modified: 15 Mar 2024 07:30

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Contributors

Author: J. Ruostekoski
Author: J.R. Anglin

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