Thermal fluctuations enhanced miscibility of binary condensates in optical lattices

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dc.contributor.author Suthar, Kuldeep
dc.contributor.author Angom, D.
dc.date.accessioned 2016-08-29T11:13:15Z
dc.date.available 2016-08-29T11:13:15Z
dc.date.issued 2016-08
dc.identifier.citation Suthar, Kuldeep and D., Ango, “Thermal fluctuations enhanced miscibility of binary condensates in optical lattices”, arXiv, Cornell University Library, DOI: arXiv:1608.04629, Aug. 2016. en_US
dc.identifier.uri https://repository.iitgn.ac.in/handle/123456789/2443
dc.identifier.uri http://arxiv.org/abs/1608.04629
dc.description.abstract We examine the role of thermal fluctuations in two-species Bose-Einstein condensates confined in quasi-two-dimensional (quasi-2D) optical lattices using the Hartree-Fock-Bogoliubov theory with the Popov approximation. The method, in particular, is ideal to probe the evolution of quasiparticle modes at finite temperatures. Our studies show that the quasiparticle spectrum in the phase-separated domain of the two-species Bose-Einstein condensate has a discontinuity at some critical value of the temperature. Furthermore, the low-lying modes like the slosh mode becomes degenerate at this critical temperature, and this is associated with the transition from the immiscible side-by-side density profile to the miscible phase. Hence, the rotational symmetry of the condensate density profiles are restored, and so is the degeneracy of quasiparticle modes. en_US
dc.description.statementofresponsibility by Kuldeep Suthar, D. Angom
dc.language.iso en_US en_US
dc.publisher Cornell University Library en_US
dc.subject Condensed Matter en_US
dc.subject Quantum Gases en_US
dc.title Thermal fluctuations enhanced miscibility of binary condensates in optical lattices en_US
dc.type Preprint en_US


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