Nucleation of vortex arrays in rotating anisotropic Bose-Einstein condensates
Statistical Mechanics
2009-10-31 v1
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.
Keywords
Cite
@article{arxiv.cond-mat/9910288,
title = {Nucleation of vortex arrays in rotating anisotropic Bose-Einstein condensates},
author = {David L. Feder and Charles W. Clark and Barry I. Schneider},
journal= {arXiv preprint arXiv:cond-mat/9910288},
year = {2009}
}
Comments
5 pages, two embedded figures. To appear in Phys. Rev. A (RC)