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arXiv:cond-mat/0104218 · Springer eBooks

Formation of Quantized Vortices in a Gaseous Bose-Einstein Condensate

Frédéric Chevy, Kirk W. Madison, Vincent Bretin, Jean Dalibard

Published Jan 1, 2002• 3 citations
arXivHTMLPDF
DOI
10.1007/978-94-010-0440-4_6

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Quantized vortices play a key role in superfluidity and superconductivity. We have observed the formation of highly ordered vortex lattices in a rotating Bose-condensed gas. These triangular lattices contained over 100 vortices with lifetimes of several seconds. Individual vortices persisted up to 40 seconds. The lattices could be generated over a wide range of rotation frequencies and trap geometries, shedding light on the formation process. Our observation of dislocations, irregular structure, and dynamics indicates that gaseous Bose-Einstein condensates may be a model system for the study of vortex matter.