Thermal activation of vortex-antivortex pairs in quasi-two-dimensional Bose-Einstein condensates

Tapio Petteri Simula, P B Blakie

Research output: Contribution to journalLetterResearchpeer-review

89 Citations (Scopus)


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.
Original languageEnglish
Pages (from-to)1 - 4
Number of pages4
JournalPhysical Review Letters
Publication statusPublished - 2006
Externally publishedYes

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