Energetically stable particle-like Skyrmions in a trapped Bose-Einstein condensate

Details Energetically stable particle-like Skyrmions in a trapped Bose-Einstein condensate Energetically stable particle-like Skyrmions in a trapped Bose-Einstein condensate

2003-06-04

arxiv.org/abs/cond-mat/0306112v1

Phys.Rev.Lett. 91 (2003) 010403

Physics

Condensed Matter

Statistical Mechanics

4 pages, 5 figures, in press Physical Review Letters

Scientific paper

10.1103/PhysRevLett.91.010403

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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