Energetically stable particle-like Skyrmions in a trapped Bose-Einstein condensate
arXiv:cond-mat/0306112 · doi:10.1103/PhysRevLett.91.010403
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.
4 pages, 5 figures, in press Physical Review Letters
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