Vortex lattices in a stirred Bose-Einstein condensate

Details Vortex lattices in a stirred Bose-Einstein condensate Vortex lattices in a stirred Bose-Einstein condensate

2000-04-04

arxiv.org/abs/cond-mat/0004037v1

Physics

Condensed Matter

Statistical Mechanics

Scientific paper

We stir with a focused laser beam a Bose-Einstein condensate of $^{87}$Rb atoms confined in a magnetic trap. We observe the formation of a single vortex for a stirring frequency exceeding a critical value. At larger rotation frequencies we produce states of the condensate for which up to eleven vortices are simultaneously present. We present measurements of the decay of a vortex array once the stirring laser beam is removed.

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