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Creating vortex rings and three-dimensional Skyrmions in Bose-Einstein condensates

Research output: Contribution to Journal/MagazineJournal articlepeer-review

Published
<mark>Journal publication date</mark>30/04/2001
<mark>Journal</mark>Physical review letters
Issue number18
Volume86
Number of pages4
Pages (from-to)3934-3937
Publication StatusPublished
<mark>Original language</mark>English

Abstract

We propose a method of generating a vortex ring in a Bose-Einstein condensate by means of electromagnetically-induced atomic transitions. Some remnant population of atoms in a second internal state remains within the toroidal trap formed by the mean field repulsion of the vortex ring. This population can be removed, or it can be made to flow around the torus (i.e. within the vortex ring). If this flow has unit topological winding number, the entire structure formed by the two condensates is an example of a three-dimensional skyrmion texture.