Thermal activation of vortex-antivortex pairs in quasi-2D Bose-Einstein condensates
arXiv:cond-mat/0510097 · doi:10.1103/PhysRevLett.96.020404
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.
4 pages, 3 figures. Additional info: http://www.physics.otago.ac.nz/uca/resources/BECBKT.html
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