Energetically Stable Particlelike Skyrmions in a Trapped Bose-Einstein Condensate

C. M. Savage and J. Ruostekoski
Phys. Rev. Lett. 91, 010403 – Published 1 July 2003

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 Rb87 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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  • Received 11 February 2003

DOI:https://doi.org/10.1103/PhysRevLett.91.010403

©2003 American Physical Society

Authors & Affiliations

C. M. Savage1,* and J. Ruostekoski2,†

  • 1Department of Physics and Theoretical Physics, Australian National University, Canberra ACT 0200, Australia
  • 2Department of Physical Sciences, University of Hertfordshire, Hatfield, Herts, AL10 9AB, United Kingdom

  • *Electronic address: craig.savage@anu.edu.au
  • Electronic address: j.ruostekoski@herts.ac.uk

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Issue

Vol. 91, Iss. 1 — 4 July 2003

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