Vortices in Bose-Einstein Condensed Na Atoms
Mesoscale and Nanoscale Physics
2007-05-23 v1 Statistical Mechanics
Abstract
There are surface modes on the Bose-Einstein condensed Na atoms so that the number of vortices diverges when the stirring frequency becomes equal to that of the surface waves. We introduce the finite life time of the surface modes so that the number of vortices becomes finite. Usually the number of vortices is a linear function of the stirring frequency. We find that this linearity is destroyed by the finite life time and a peaked function emerges with several peaks, one for each surface mode. The vortices become normal, as they should be, so that there occurs a phase transition from normal to the superfluid state.
Cite
@article{arxiv.cond-mat/0111357,
title = {Vortices in Bose-Einstein Condensed Na Atoms},
author = {Keshav N. Shrivastava},
journal= {arXiv preprint arXiv:cond-mat/0111357},
year = {2007}
}
Comments
4 pages