Collapse times of dipolar Bose-Einstein condensates
Other Condensed Matter
2009-11-13 v1 Quantum Physics
Abstract
We investigate the time taken for global collapse by a dipolar Bose-Einstein condensate. Two semi-analytical approaches and exact numerical integration of the mean-field dynamics are considered. The semi-analytical approaches are based on a Gaussian ansatz and a Thomas-Fermi solution for the shape of the condensate. The regimes of validity for these two approaches are determined, and their predictions for the collapse time revealed and compared with numerical simulations. The dipolar interactions introduce anisotropy into the collapse dynamics and predominantly lead to collapse in the plane perpendicular to the axis of polarization.
Cite
@article{arxiv.0809.4294,
title = {Collapse times of dipolar Bose-Einstein condensates},
author = {C. Ticknor and N. G. Parker and A. Melatos and S. L. Cornish and D. H. J. O'Dell and A. M Martin},
journal= {arXiv preprint arXiv:0809.4294},
year = {2009}
}
Comments
5 pages with 3 figures