1. Vortex lattices in a stirred Bose-Einstein condensate
- Author
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Madison, K. W., Chevy, F., Wohlleben, W., and Dalibard, J.
- Subjects
Physics::Fluid Dynamics ,Condensed Matter::Quantum Gases ,Condensed Matter - Mesoscale and Nanoscale Physics ,Statistical Mechanics (cond-mat.stat-mech) ,Mesoscale and Nanoscale Physics (cond-mat.mes-hall) ,FOS: Physical sciences ,Physics::Atomic Physics ,Physics::Chemical Physics ,Condensed Matter - Statistical Mechanics - Abstract
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.
- Published
- 2000
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