Reorganization of Kohn mode from harmonic to toroidal trap

Show simple item record Roy, Arko Angom, D. 2015-12-16T09:11:07Z 2015-12-16T09:11:07Z 2015-11
dc.identifier.citation Roy, Arko and Angom, D., “Reorganization of Kohn mode from harmonic to toroidal trap”, arXiv, Cornell University Library, DOI: arXiv:1511.08655, Nov. 2015. en_US
dc.identifier.other arXiv:1511.08655
dc.description.abstract We report the structural transformation of Kohn mode, from radial to circular one, in Bose-Einstein condensates as the harmonic confining potential is transformed to a toroidal one. A change which translates to modification of a pancake to a toroidal shaped condensate. For this we employ Hartree-Fock-Bogoliubov theory to examine the evolution of low energy quasiparticles. We, then, use Hartree-Fock-Bogoliubov theory with Popov approximation to demonstrate a striking change in the density profile of the non-condensate or thermal atoms accompanying the transformation of the trapping potential at [Math Processing Error]. That is, the condensate and non-condensate density distributions have overlapping maxima in the toroidal condensate, which is in stark contrast to the case of pancake geometry. en_US
dc.description.statementofresponsibility by Arko Roy and D. Angom
dc.language.iso en_US en_US
dc.publisher Cornell University Library en_US
dc.subject Quantum Gases en_US
dc.subject Kohn mode en_US
dc.title Reorganization of Kohn mode from harmonic to toroidal trap en_US
dc.type Preprint en_US

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