arXiv:cond-mat/0107512 Abstract

arXiv:cond-mat/0107512Abstract References Reviews Resources

Beyond the Thomas-Fermi Approximation for Nonlinear Dynamics of Trapped Bose-Condensed Gases

Published 2001-07-24Version 1

We present an analytical approximation for nonlinear dynamics of trapped Bose-co ndensed gases. The new approximation is a substantial improvement over the Thomas-Fermi approximation and is shown to be applicable for systems with a rather small number of atoms $N$. The calculated aspect ratios after ballistic expansion are found to be in good agreement with those observed in recent experiments.

Comments: 10 pages, 1 figure, 3 tables

Categories: cond-mat.stat-mech

Keywords: nonlinear dynamics, thomas-fermi approximation, trapped bose-condensed gases, trapped bose-co ndensed gases, substantial improvement

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