Bragg spectroscopy of a cigar shaped Bose condensate in optical lattices

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dc.creatorGhosh, Tarun Kanti
dc.creatorMachida, Kazushige
dc.date2006-11-13
dc.date2007-05-30
dc.date.accessioned2026-07-07T08:10:28Z
dc.date.available2026-07-07T08:10:28Z
dc.descriptionWe study properties of excited states of an array of weakly coupled quasi-two-dimensional Bose condensates by using the hydrodynamic theory. We calculate multibranch Bogoliubov-Bloch spectrums and its corresponding eigenfunctions. The spectrum of the axial excited states and its eigenfunctions strongly depends on the coupling among various discrete radial modes within a given symmetry. This mode coupling is due to the presence of radial trapping potential. The multibranch nature of the Bogoliubov-Bloch spectrum and its dependence on the mode-coupling can be realized by analyzing dynamic structure factor and momentum transferred to the system in Bragg spectroscopy experiments. We also study dynamic structure factor and momentum transferred to the condensate due to the Bragg spectroscopy experiment.
dc.description7 pages, 5 figures, to appear in Journal of Physics B: Atomic, Molecular & Optical Physics
dc.identifierhttps://arxiv.org/abs/cond-mat/0611312
dc.identifierhttp://arxiv.org/abs/cond-mat/0611312
dc.identifierJournal of Physics B: Atomic, Molecular & Optical Physics 40, 2587 (2007)
dc.identifierdoi:10.1088/0953-4075/40/13/005
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/131837
dc.subjectOther Condensed Matter
dc.titleBragg spectroscopy of a cigar shaped Bose condensate in optical lattices
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