Analytical Estimate of the Critical Velocity for Vortex Pair Creation in Trapped Bose Condensates
M. Crescimanno, C. G. Koay, R. Peterson, R. Walsworth
Abstract
We use a modified Thomas-Fermi approximation to estimate analytically the critical velocity for the formation of vortices in harmonically trapped BEC. We compare this analytical estimate to numerical calculations and to recent experiments on trapped alkali condensates.
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