Stable Skyrmions in spinor condensates

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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.
4 pages, 2 figures; few typos corrected, references updated, to appear in Phys. Rev. Lett

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Superconductivity, Astrophysics, Statistical Mechanics, Pattern Formation and Solitons

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http://salesiana.dossiersoluciones.com/handle/123456789/109760

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/0604557
 http://arxiv.org/abs/cond-mat/0604557
 Phys.Rev.Lett. 97 (2006) 080403
 doi:10.1103/PhysRevLett.97.080403

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arXiv