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dc.contributor.authorKeleş, A.en_US
dc.contributor.authorSevinçli, S.en_US
dc.contributor.authorTanatar, B.en_US
dc.date.accessioned2016-02-08T11:39:04Z
dc.date.available2016-02-08T11:39:04Z
dc.date.issued2008en_US
dc.identifier.issn0022-2291
dc.identifier.urihttp://hdl.handle.net/11693/26901
dc.description.abstractWe study the ground-state properties of a Bose-Einstein condensate (BEC) with the short-range repulsion and gravitylike 1/r interatomic attraction in two-dimensions (2D). Using the variational approach, we obtain the ground-state energy and show that the condensate is stable for all interaction strenghts in 2D. We also determine the collective excitations at zero temperature using the time-dependent variational method. We analyze the properties of the Thomas-Fermi-gravity (TF-G) and gravity (G) regimes.en_US
dc.language.isoEnglishen_US
dc.source.titleJournal of Low Temperature Physicsen_US
dc.relation.isversionofhttp://dx.doi.org/10.1007/s10909-007-9599-zen_US
dc.subjectCold atom Bose and Fermi systemsen_US
dc.subjectExcitations in quantum systemsen_US
dc.subjectInteraction strenghten_US
dc.subjectInteratomic attractionen_US
dc.subjectThomas-Fermi-gravityen_US
dc.subjectAtomic physicsen_US
dc.subjectExcitation energyen_US
dc.subjectGravitationen_US
dc.subjectGround stateen_US
dc.subjectBose-Einstein condensationen_US
dc.titleGround-State properties and collective excitations in a 2D Bose-Einstein condensate with gravity-like interatomic attractionen_US
dc.typeConference Paperen_US
dc.departmentDepartment of Physics
dc.citation.spage630en_US
dc.citation.epage635en_US
dc.citation.volumeNumber150en_US
dc.citation.issueNumber3-4en_US
dc.identifier.doi10.1007/s10909-007-9599-zen_US
dc.publisherSpringer New York LLCen_US
dc.identifier.eissn1573-7357


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