Stable Skyrmions in spinor condensates
Superconductivity
2007-05-23 v2 Astrophysics
Statistical Mechanics
Pattern Formation and Solitons
Abstract
Globally symmetric spinor condensates in free space are argued not to support stable topological defects in either two or three dimensions. In the latter case, however, we show that a topological Skyrmion can be stabilized by forcing it to adopt certain density profiles. A sufficient condition for the existence of Skyrmion solutions in three dimensions is formulated and illustrated in simple examples. Our results pertain to Bose-Einstein condensation in Rb.
Keywords
Cite
@article{arxiv.cond-mat/0604557,
title = {Stable Skyrmions in spinor condensates},
author = {Igor F. Herbut and Masaki Oshikawa},
journal= {arXiv preprint arXiv:cond-mat/0604557},
year = {2007}
}
Comments
4 pages, 2 figures; few typos corrected, references updated, to appear in Phys. Rev. Lett