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 87Rb condensate experiments. The separate conservation of the two atomic species can stabilize the Skyrmion against shrinking...

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Bibliographic Details
Published in:Physical review letters 2003-07, Vol.91 (1), p.010403-010403, Article 010403
Main Authors: Savage, C M, Ruostekoski, J
Format: Article
Language:English
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Summary: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 87Rb 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.
ISSN:0031-9007
1079-7114
DOI:10.1103/physrevlett.91.010403