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dc.contributor.authorAbedinpour, S. H.
dc.contributor.authorTanatar, Bilal
dc.date.accessioned2021-03-02T08:34:42Z
dc.date.available2021-03-02T08:34:42Z
dc.date.issued2020
dc.identifier.issn1063-777X
dc.identifier.urihttp://hdl.handle.net/11693/75691
dc.description.abstractWe investigate the collective density oscillations and dissipationless drag effect in bilayer structures of ultra-cold bosons in the presence of counterflow. We consider different types of inter-particle interactions and obtain the drag coefficient and effect of counterflow on the sound velocity. We observe that counterflow enhances (suppresses) the energy of symmetric (asymmetric) density mode and drives the homogeneous system towards instability. The dependence of the drag coefficient on the spacing between two layers is determined by the form of particle-particle interaction.en_US
dc.language.isoEnglishen_US
dc.source.titleLow Temperature Physicsen_US
dc.relation.isversionofhttps://dx.doi.org/10.1063/10.0001051en_US
dc.subjectAcoustic wavesen_US
dc.subjectBosonsen_US
dc.subjectSupercurrenten_US
dc.subjectSuperfluidsen_US
dc.subjectRandom phase approximationen_US
dc.subjectAcoustical propertiesen_US
dc.subjectElectrostaticsen_US
dc.subjectBose gasen_US
dc.subjectPlasmonsen_US
dc.subjectFluid dragen_US
dc.titleCounterflow in Bose gas bilayers: collective modes and dissipationless dragen_US
dc.typeArticleen_US
dc.departmentDepartment of Physicsen_US
dc.citation.spage480en_US
dc.citation.epage484en_US
dc.citation.volumeNumber46en_US
dc.citation.issueNumber5en_US
dc.identifier.doi10.1063/10.0001051en_US
dc.publisherAmerican Institute of Physicsen_US
buir.contributor.orcidTanatar, Bilal|0000-0002-5246-0119en_US


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