Ground-state properties, vortices, and collective excitations in a two-dimensional Bose-Einstein condensate with gravitylike interatomic attraction

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buir.contributor.authorTanatar, Bilal
buir.contributor.orcidTanatar, Bilal|0000-0002-5246-0119
dc.citation.issueNumber5en_US
dc.citation.volumeNumber77en_US
dc.contributor.authorKeleş, A.en_US
dc.contributor.authorSevinçli, S.en_US
dc.contributor.authorTanatar, Bilalen_US
dc.date.accessioned2016-02-08T10:09:15Z
dc.date.available2016-02-08T10:09:15Z
dc.date.issued2008en_US
dc.departmentDepartment of Physicsen_US
dc.description.abstractWe study the ground-state properties of a Bose-Einstein condensate with short-range repulsion and gravitylike 1/r interatomic attraction in two-dimensions (2D). Using the variational approach we obtain the ground-state energy and analyze the stability of the condensate for a range of interaction strengths 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 and gravity regimes, and we examine the vortex states, finding the coherence length and monopole mode frequency for these regimes. Our results are compared and contrasted with those in 3D condensates.en_US
dc.description.provenanceMade available in DSpace on 2016-02-08T10:09:15Z (GMT). No. of bitstreams: 1 bilkent-research-paper.pdf: 70227 bytes, checksum: 26e812c6f5156f83f0e77b261a471b5a (MD5) Previous issue date: 2008en
dc.identifier.doi10.1103/PhysRevA.77.053604en_US
dc.identifier.issn1050-2947
dc.identifier.urihttp://hdl.handle.net/11693/23123
dc.language.isoEnglishen_US
dc.publisherThe American Physical Societyen_US
dc.relation.isversionofhttp://dx.doi.org/10.1103/PhysRevA.77.053604en_US
dc.source.titlePhysical Review A - Atomic, Molecular, and Optical Physicsen_US
dc.subjectAtomic physicsen_US
dc.subjectGravity wavesen_US
dc.subjectGround stateen_US
dc.subjectMolecular interactionsen_US
dc.subjectPhase stabilityen_US
dc.subjectVortex flowen_US
dc.subjectCollective excitationsen_US
dc.subjectFermi gravityen_US
dc.subjectGravitylike interatomic attractionen_US
dc.subjectInteraction strengthsen_US
dc.subjectBose-Einstein condensationen_US
dc.titleGround-state properties, vortices, and collective excitations in a two-dimensional Bose-Einstein condensate with gravitylike interatomic attractionen_US
dc.typeArticleen_US

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