Finite temperature dynamics of vortices in Bose-Einstein condensates

Show simple item record Gautam, S. Roy, Arko Mukerjee, Subroto 2015-04-26T17:48:35Z 2015-04-26T17:48:35Z 2013-10
dc.identifier.citation Gautam, S.; Roy, Arko; Gautam, S. and Mukerjee, Subroto, “Finite temperature dynamics of vortices in Bose-Einstein condensates”, arXiv, Cornell University Library, DOI: arXiv:1309.6205, Oct. 2013. en_US
dc.description.abstract We study the dynamics of a single and a pair of vortices in quasi two-dimensional Bose-Einstein condensates at finite temperatures. We use the stochastic Gross-Pitaevskii equation, which is the Langevin equation for the Bose-Einstein condensate, to this end. For a pair of vortices, we study the dynamics of both the vortex-vortex and vortex-antivortex pairs, which are generated by rotating the trap and moving the Gaussian obstacle potential, respectively. Due to thermal fluctuations, the constituent vortices are not symmetrically generated with respect to each other at finite temperatures. This initial asymmetry coupled with the presence of random thermal fluctuations in the system can lead to different decay rates for the component vortices of the pair, especially in the case of two corotating vortices en_US
dc.language.iso en en_US
dc.publisher Cornell University Library en_US
dc.subject Gross-Pitaevskii equation en_US
dc.subject Langevin en_US
dc.subject Vortices en_US
dc.title Finite temperature dynamics of vortices in Bose-Einstein condensates en_US
dc.type Preprint en_US

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