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Energetically stable particlelike skyrmions in a trapped Bose-Einstein condensate

Energetically stable particlelike skyrmions in a trapped Bose-Einstein condensate
Energetically stable particlelike skyrmions in a trapped Bose-Einstein condensate
We numerically show that a topologically nontrivial 3D Skyrmion can be energetically stable in a trapped two-component atomic Bose-Einstein condensate, for the parameters of Rb-87 condensate experiments. The separate conservation of the two atomic species can stabilize the Skyrmion against shrinking to zero size, while drift of the Skyrmion due to the trap-induced density gradient can be prevented by rotation or by a laser potential.
skyrmions, bose-einstein condensation, particle traps
0031-9007
010403-[4pp]
Savage, C.M.
c1938161-fb0e-4461-a840-4e1436c84333
Ruostekoski, J.
2beb155e-64b0-4ee9-9cfe-079947a9c9f4
Savage, C.M.
c1938161-fb0e-4461-a840-4e1436c84333
Ruostekoski, J.
2beb155e-64b0-4ee9-9cfe-079947a9c9f4

Savage, C.M. and Ruostekoski, J. (2003) Energetically stable particlelike skyrmions in a trapped Bose-Einstein condensate. Physical Review Letters, 91 (1), 010403-[4pp]. (doi:10.1103/PhysRevLett.91.010403). (PMID:12906522)

Record type: Article

Abstract

We numerically show that a topologically nontrivial 3D Skyrmion can be energetically stable in a trapped two-component atomic Bose-Einstein condensate, for the parameters of Rb-87 condensate experiments. The separate conservation of the two atomic species can stabilize the Skyrmion against shrinking to zero size, while drift of the Skyrmion due to the trap-induced density gradient can be prevented by rotation or by a laser potential.

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More information

Published date: 2003
Keywords: skyrmions, bose-einstein condensation, particle traps

Identifiers

Local EPrints ID: 29354
URI: http://eprints.soton.ac.uk/id/eprint/29354
ISSN: 0031-9007
PURE UUID: bd955fb5-f39b-45be-9fcb-87fcbaeb813f

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Date deposited: 12 May 2006
Last modified: 15 Mar 2024 07:30

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Contributors

Author: C.M. Savage
Author: J. Ruostekoski

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