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Low-Energy Collective Oscillations and Bogoliubov Sound in an Exciton-Polariton Condensate

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dc.contributor.authorEstrecho, Eliezer
dc.contributor.authorPieczarka, Maciej
dc.contributor.authorWurdack, Matthias
dc.contributor.authorSteger, M
dc.contributor.authorWest, K.
dc.contributor.authorPfeiffer, L. N.
dc.contributor.authorSnoke, D. W.
dc.contributor.authorTruscott, Andrew
dc.contributor.authorOstrovskaya, Elena
dc.date.accessioned2023-03-06T00:18:15Z
dc.date.available2023-03-06T00:18:15Z
dc.date.issued2021
dc.date.updated2021-12-26T07:18:18Z
dc.description.abstractWe report the observation of low-energy, low-momenta collective oscillations of an exciton-polariton condensate in a round “box” trap. The oscillations are dominated by the dipole and breathing modes, and the ratio of the frequencies of the two modes is consistent with that of a weakly interacting two-dimensional trapped Bose gas. The speed of sound extracted from the dipole oscillation frequency is smaller than the Bogoliubov sound, which can be partly explained by the influence of the incoherent reservoir. These results pave the way for understanding the effects of reservoir, dissipation, energy relaxation, and finite temperature on the superfluid properties of exciton-polariton condensates and other two-dimensional open-dissipative quantum fluids.en_AU
dc.description.sponsorshipM.P. acknowledges support by the Foundation for Polish Science (FNP) in the START programme and National Science Center in Poland, Grant No. 2018/30/E/ST7/00648. The work at Pittsburgh and Princeton was supported by the US National Science Foundation Grant No. DMR-2004570.en_AU
dc.format.mimetypeapplication/pdfen_AU
dc.identifier.issn0031-9007en_AU
dc.identifier.urihttp://hdl.handle.net/1885/286602
dc.language.isoen_AUen_AU
dc.provenancehttps://v2.sherpa.ac.uk/id/publication/13640/..."published version can be archived in institutional repository" from SHERPA/RoMEO site as at 06/03/2023en_AU
dc.publisherAmerican Physical Societyen_AU
dc.relationhttp://purl.org/au-research/grants/arc/CE170100039en_AU
dc.rights© 2021 The authorsen_AU
dc.sourcePhysical Review Lettersen_AU
dc.titleLow-Energy Collective Oscillations and Bogoliubov Sound in an Exciton-Polariton Condensateen_AU
dc.typeJournal articleen_AU
dcterms.accessRightsOpen Accessen_AU
local.bibliographicCitation.issue7en_AU
local.contributor.affiliationEstrecho, Eliezer, College of Science, ANUen_AU
local.contributor.affiliationPieczarka, Maciej, College of Science, ANUen_AU
local.contributor.affiliationWurdack, Matthias, College of Science, ANUen_AU
local.contributor.affiliationSteger, M, University of Pittsburghen_AU
local.contributor.affiliationWest, K., Princeton Universityen_AU
local.contributor.affiliationPfeiffer, L. N., Princeton Universityen_AU
local.contributor.affiliationSnoke, D. W., University of Pittsburghen_AU
local.contributor.affiliationTruscott, Andrew, College of Science, ANUen_AU
local.contributor.affiliationOstrovskaya, Elena, College of Science, ANUen_AU
local.contributor.authoruidEstrecho, Eliezer, u5644644en_AU
local.contributor.authoruidPieczarka, Maciej, u1090947en_AU
local.contributor.authoruidWurdack, Matthias, u1009240en_AU
local.contributor.authoruidTruscott, Andrew, u4040705en_AU
local.contributor.authoruidOstrovskaya, Elena, u9510052en_AU
local.description.notesImported from ARIESen_AU
local.identifier.absfor510801 - Degenerate quantum gases and atom opticsen_AU
local.identifier.absfor510404 - Electronic and magnetic properties of condensed matter; superconductivityen_AU
local.identifier.absseo280120 - Expanding knowledge in the physical sciencesen_AU
local.identifier.ariespublicationa383154xPUB18068en_AU
local.identifier.citationvolume126en_AU
local.identifier.doi10.1103/PhysRevLett.126.075301en_AU
local.identifier.scopusID2-s2.0-85102395756
local.publisher.urlhttps://journals.aps.org/en_AU
local.type.statusPublished Versionen_AU

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