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arXiv:cond-mat/0510097 · Physical Review Letters

Thermal Activation of Vortex-Antivortex Pairs in Quasi-Two-Dimensional Bose-Einstein Condensates

Tapio Simula, P. B. Blakie

Published Jan 19, 2006• 104 citations
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Abstract

Here we show, by performing ab initio classical field simulations that two distinct superfluid phases, separated by thermal vortex-antivortex pair creation, exist in experimentally producible quasi-2D Bose gas. These results resolve the debate on the nature of the low temperature phase(s) of a trapped interacting 2D Bose gas.
DOI
10.1103/physrevlett.96.020404

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