Nucleation of vortex arrays in rotating anisotropic Bose-Einstein condensates
arXiv:cond-mat/9910288 · doi:10.1103/PhysRevA.61.011601
Abstract
The nucleation of vortices and the resulting structures of vortex arrays in dilute, trapped, zero-temperature Bose-Einstein condensates are investigated numerically. Vortices are generated by rotating a three-dimensional, anisotropic harmonic atom trap. The condensate ground state is obtained by propagating the Gross-Pitaevskii equation in imaginary time. Vortices first appear at a rotation frequency significantly larger than the critical frequency for vortex stabilization. This is consistent with a critical velocity mechanism for vortex nucleation. At higher frequencies, the structures of the vortex arrays are strongly influenced by trap geometry.
5 pages, two embedded figures. To appear in Phys. Rev. A (RC)
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Cited by in corpus (53)
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