Small numbers of vortices in anisotropic traps

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Date
2009
Authors
McEndoo, Suzanne
Busch, Thomas
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Publisher
American Physical Society
Published Version
10.1103/PhysRevA.79.053616
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Abstract
We investigate the appearance of vortices and vortex lattices in two-dimensional, anisotropic, and rotating Bose-Einstein condensates. Once the anisotropy reaches a critical value, the positions of the vortex cores in the ground state are no longer given by an Abrikosov lattice geometry but by a linear arrangement. Using a variational approach, we determine the critical stirring frequency for a single vortex as well as the equilibrium positions of a small number of vortices.
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Keywords
Bose-Einstein condensate
Citation
McEndoo, S. and Busch, T. (2009) 'Small numbers of vortices in anisotropic traps', Physical Review A, 79(5), 053616 (7pp). doi: 10.1103/PhysRevA.79.053616
URI
http://hdl.handle.net/10468/4535
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Physics - Journal Articles
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© 2009, American Physical Society