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arXiv · 0902.4205

Small Numbers of Vortices in Anisotropic Traps

S. McEndoo·Th. Busch
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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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S. McEndoo, Th. Busch. 2009-02-24. Small Numbers of Vortices in Anisotropic Traps. https://doi.org/10.1103/physreva.79.053616

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