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dc.contributor.authorOliva, Maxime
dc.contributor.authorSteuernagel, Ole
dc.date.accessioned2019-03-27T15:09:03Z
dc.date.available2019-03-27T15:09:03Z
dc.date.issued2019-03-06
dc.identifier.citationOliva , M & Steuernagel , O 2019 , ' Quantum Kerr oscillators' evolution in phase space : Wigner current, symmetries, shear suppression and special states ' , Physical Review A , vol. 99 , no. 3 , 032104 , pp. 1-7 . https://doi.org/10.1103/PhysRevA.99.032104
dc.identifier.issn1050-2947
dc.identifier.otherPURE: 16483357
dc.identifier.otherPURE UUID: 5225fa5f-7f26-4238-a3d0-3179ebe625e3
dc.identifier.otherArXiv: http://arxiv.org/abs/1811.02952v2
dc.identifier.otherScopus: 85062824275
dc.identifier.urihttp://hdl.handle.net/2299/21227
dc.description©2019 American Physical Society. All rights reserved. This is the author-prepared / formatted version of an article accepted for publication in Physical Review A. The definitive publisher-authenticated version is available online at: https://doi.org/10.1103/PhysRevA.99.032104
dc.description.abstractThe creation of quantum coherences requires a system to be anharmonic. The simplest such continuous one-dimensional quantum system is the Kerr oscillator. It has a number of interesting symmetries we derive. Its quantum dynamics is best studied in phase space, using Wigner's distribution W and the associated Wigner phase space current J. Expressions for the continuity equation governing its time evolution are derived in terms of J and it is shown that J for Kerr oscillators follows circles in phase space. Using J we also show that the evolution's classical shear in phase space is quantum suppressed by an effective "viscosity." Quantifying this shear suppression provides measures to contrast classical with quantum evolution and allows us to identify special quantum states.en
dc.format.extent7
dc.language.isoeng
dc.relation.ispartofPhysical Review A
dc.subjectquant-ph
dc.subjectAtomic and Molecular Physics, and Optics
dc.titleQuantum Kerr oscillators' evolution in phase space : Wigner current, symmetries, shear suppression and special statesen
dc.contributor.institutionCentre for Atmospheric and Climate Physics Research
dc.contributor.institutionSchool of Physics, Astronomy and Mathematics
dc.description.statusPeer reviewed
dc.identifier.urlhttp://www.scopus.com/inward/record.url?scp=85062824275&partnerID=8YFLogxK
rioxxterms.versionAM
rioxxterms.versionofrecordhttps://doi.org/10.1103/PhysRevA.99.032104
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue


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