Characteristic temperature for the immiscible-miscible transition of binary condensates in optical lattices

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dc.contributor.author Suthar, Kuldeep
dc.contributor.author Angom, D.
dc.date.accessioned 2017-04-15T20:41:05Z
dc.date.available 2017-04-15T20:41:05Z
dc.date.issued 2017-04
dc.identifier.citation Suthar, Kuldeep and Angom, D., “Characteristic temperature for the immiscible-miscible transition of binary condensates in optical lattices”, Physical Review A, DOI: 10.1103/PhysRevA.95.043602, vol. 95, no. 4, Apr. 2017. en_US
dc.identifier.issn 0031-9007
dc.identifier.issn 1079-7114
dc.identifier.uri https://repository.iitgn.ac.in/handle/123456789/2849
dc.identifier.uri http://dx.doi.org/10.1103/PhysRevA.95.043602
dc.description.abstract We study two-species Bose-Einstein condensates confined in quasi-two-dimensional (quasi-2D) optical lattices at finite temperatures, employing the Hartree-Fock-Bogoliubov theory with the Popov approximation. We examine the role of thermal fluctuations in the ground-state density distributions and the quasiparticle mode evolution. At zero temperature, the geometry of the ground state in the immiscible domain is side by side. Our results show that the thermal fluctuations enhance the miscibility of the condensates, and at a characteristic temperature the system becomes miscible with rotationally symmetric overlapping density profiles. This immiscible-miscible transition is accompanied by a discontinuity in the excitation spectrum, and the low-lying quasiparticle modes such as slosh mode become degenerate at the characteristic temperature. en_US
dc.description.statementofresponsibility by Kuldeep Suthar and D. Angom
dc.format.extent Vol. 95, no. 4
dc.language.iso en_US en_US
dc.publisher American Physical Society en_US
dc.title Characteristic temperature for the immiscible-miscible transition of binary condensates in optical lattices en_US
dc.type Article en_US
dc.relation.journal by Physical Review A


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