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dc.contributor.authorEigen, Christophen
dc.contributor.authorGlidden, Jakeen
dc.contributor.authorLopes, Raphaelen
dc.contributor.authorCornell, Eric Aen
dc.contributor.authorSmith, Robert Pen
dc.contributor.authorHadzibabic, Zoranen
dc.date.accessioned2018-11-30T00:32:26Z
dc.date.available2018-11-30T00:32:26Z
dc.date.issued2018-11-07en
dc.identifier.issn0028-0836
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/286143
dc.description.abstractUnderstanding strongly correlated phases of matter, from the quark-gluon plasma to neutron stars, and in particular the dynamics of such systems, $e.g.$ following a Hamiltonian quench, poses a fundamental challenge in modern physics. Ultracold atomic gases are excellent quantum simulators for these problems, thanks to tuneable interparticle interactions and experimentally resolvable intrinsic timescales. In particular, they give access to the unitary regime where the interactions are as strong as allowed by quantum mechanics. Following years of experiments on unitary Fermi gases, unitary Bose gases have recently emerged as a new experimental frontier. They promise exciting new possibilities, including universal physics solely controlled by the gas density and novel forms of superfluidity. Here, through momentum- and time-resolved studies, we explore both degenerate and thermal homogeneous Bose gases quenched to unitarity. In degenerate samples we observe universal post-quench dynamics in agreement with the emergence of a prethermal state with a universal nonzero condensed fraction. In thermal gases, dynamic and thermodynamic properties generically depend on both the gas density $n$ and temperature $T$, but we find that they can still be expressed in terms of universal dimensionless functions. Surprisingly, the total quench-induced correlation energy is independent of the gas temperature. Our measurements provide quantitative benchmarks and new challenges for theoretical understanding.
dc.format.mediumPrint-Electronicen
dc.languageengen
dc.publisherSpringer Nature
dc.titleUniversal prethermal dynamics of Bose gases quenched to unitarity.en
dc.typeArticle
prism.endingPage224
prism.issueIdentifier7730en
prism.publicationDate2018en
prism.publicationNameNatureen
prism.startingPage221
prism.volume563en
dc.identifier.doi10.17863/CAM.33457
dcterms.dateAccepted2018-09-28en
rioxxterms.versionofrecord10.1038/s41586-018-0674-1en
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserveden
rioxxterms.licenseref.startdate2018-11-07en
dc.contributor.orcidEigen, Christoph [0000-0001-5298-7482]
dc.contributor.orcidGlidden, Jake [0000-0001-6241-5162]
dc.contributor.orcidLopes, Raphael [0000-0003-3877-8478]
dc.contributor.orcidHadzibabic, Zoran [0000-0002-0118-9285]
dc.identifier.eissn1476-4687
rioxxterms.typeJournal Article/Reviewen
pubs.funder-project-idEuropean Office of Aerospace Research and Development (EOARD) (W911NF-15-1-0444)
pubs.funder-project-idEPSRC (EP/N011759/1)
pubs.funder-project-idECH2020 EUROPEAN RESEARCH COUNCIL (ERC) (682285)
pubs.funder-project-idEPSRC (via University of Strathclyde) (EP/P009565/1)
datacite.issupplementedby.urlhttps://doi.org/10.17863/CAM.30242
rioxxterms.freetoread.startdate2019-05-07


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