Experimental studies of equilibrium vortex properties in a Bose-condensed gas
Soft Condensed Matter
2009-11-10 v4
Abstract
We characterize several equilibrium vortex effects in a rotating Bose-Einstein condensate. Specifically we attempt precision measurements of vortex lattice spacing and the vortex core size over a range of condensate densities and rotation rates. These measurements are supplemented by numerical simulations, and both experimental and numerical data are compared to theory predictions of Sheehy and Radzihovsky [17] (cond-mat/0402637) and Baym and Pethick [25] (cond-mat/0308325). Finally, we study the effect of the centrifugal weakening of the trapping spring constants on the critical temperature for quantum degeneracy and the effects of finite temperature on vortex contrast.
Keywords
Cite
@article{arxiv.cond-mat/0405240,
title = {Experimental studies of equilibrium vortex properties in a Bose-condensed gas},
author = {I. Coddington and P. C. Haljan and P. Engels and V. Schweikhard and S. Tung and E. A. Cornell},
journal= {arXiv preprint arXiv:cond-mat/0405240},
year = {2009}
}
Comments
Fixed minor notational inconsistencies in figures. 12 pages, 8 figures