Journal
PHYSICAL REVIEW LETTERS
Volume 86, Issue 18, Pages 3934-3937Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.86.3934
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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 he removed. or it can be made to flow around the torus (i.e.. within the vortex ring). If this flow has a unit topological winding number, the entire structure formed by the two condensates is an example of a three-dimensional Skyrmion texture.
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