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Critical Response of a Quantum van der Pol Oscillator.

cam.issuedOnline2019-12-20
cam.orpheus.successThu Jan 30 10:35:48 GMT 2020 - The item has an open VoR version.
dc.contributor.authorDutta, Shovan
dc.contributor.authorCooper, Nigel R
dc.contributor.orcidDutta, Shovan [0000-0002-3534-6920]
dc.contributor.orcidCooper, Nigel [0000-0002-4662-1254]
dc.date.accessioned2019-11-15T00:30:33Z
dc.date.available2019-11-15T00:30:33Z
dc.date.issued2019-12-20
dc.description.abstractClassical dynamical systems close to a critical point are known to act as efficient sensors due to a strongly nonlinear response. We explore such systems in the quantum regime by modeling a quantum version of a driven van der Pol oscillator. We find the classical response survives down to one excitation quantum. At very weak drives, genuine quantum features arise, including diverging and negative susceptibilities. Further, the linear response is greatly enhanced by using a strong incoherent pump. These results are largely generic and can be probed in current experimental platforms suited for quantum sensing.
dc.format.mediumPrint
dc.identifier.doi10.17863/CAM.45951
dc.identifier.eissn1079-7114
dc.identifier.issn0031-9007
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/298894
dc.languageeng
dc.language.isoeng
dc.publisherAmerican Physical Society (APS)
dc.publisher.urlhttp://dx.doi.org/10.1103/PhysRevLett.123.250401
dc.rightsAll rights reserved
dc.subjectquant-ph
dc.subjectquant-ph
dc.subjectcond-mat.quant-gas
dc.titleCritical Response of a Quantum van der Pol Oscillator.
dc.typeArticle
dcterms.dateAccepted2019-11-12
prism.issueIdentifier25
prism.publicationDate2019
prism.publicationNamePhys Rev Lett
prism.startingPage250401
prism.volume123
pubs.funder-project-idEngineering and Physical Sciences Research Council (EP/P009565/1)
pubs.funder-project-idSimons Foundation (511029)
rioxxterms.licenseref.startdate2019-12
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserved
rioxxterms.typeJournal Article/Review
rioxxterms.versionVoR
rioxxterms.versionofrecord10.1103/PhysRevLett.123.250401

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