Three-dimensional dynamics of vortex lattice formation in Bose-Einstein condensates
Other Condensed Matter
2009-11-11 v1
Abstract
We numerically study the dynamics of vortex lattice formation in a rotating cigar-shaped Bose-Einstein condensate. The study is a three-dimensional simulation of the Gross-Pitaevskii equation with a phenomenological dissipation term. The simulations reveal previously unknown dynamical features of the vortex nucleation process, in which the condensate undergoes a strongly turbulent stage and the penetrating vortex lines vibrate rapidly. The vibrations arise from spontaneous excitation of Kelvin waves on the proto-vortices during a surface wave instability, caused by an inhomogeneity of the condensate density along the elongated axial direction.
Cite
@article{arxiv.cond-mat/0504603,
title = {Three-dimensional dynamics of vortex lattice formation in Bose-Einstein condensates},
author = {Kenichi Kasamatsu and Masahiko Machida and Narimasa Sasa and Makoto Tsubota},
journal= {arXiv preprint arXiv:cond-mat/0504603},
year = {2009}
}
Comments
5 pages, 3 figures