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dc.contributor.authorDamanet, François
dc.contributor.authorDaley, Andrew J.
dc.contributor.authorKeeling, Jonathan
dc.identifier.citationDamanet , F , Daley , A J & Keeling , J 2019 , ' Atom-only descriptions of the driven dissipative Dicke model ' , Physical Review. A, Atomic, molecular, and optical physics , vol. 99 , no. 3 , 033845 .
dc.identifier.otherPURE: 257934718
dc.identifier.otherPURE UUID: e901d4ac-255b-43ac-98e6-5661abe718f5
dc.identifier.otherORCID: /0000-0002-4283-552X/work/55901222
dc.identifier.otherScopus: 85064061671
dc.identifier.otherWOS: 000462868800016
dc.descriptionFunding: F.D. and A.D. acknowledge support from the EPSRC Programme Grant Des-OEQ (EP/P009565/1), and by the EOARD via AFOSR grant number FA9550-18-1-0064. J. K. acknowledges support from SU2P.en
dc.description.abstractWe investigate how to describe the dissipative spin dynamics of the driven dissipative Dicke model, describing N two-level atoms coupled to a cavity mode, after adiabatic elimination of the cavity mode. To this end, we derive a Redfield master equation which goes beyond the standard secular approximation and large detuning limits. We show that the secular (or rotating wave) approximation and the large detuning approximation both lead to inadequate master equations, that fail to predict the Dicke transition or the damping rates of the atomic dynamics. In contrast, the full Redfield theory correctly predicts the phase transition and the effective atomic damping rates. Our work provides a reliable framework to study the full quantum dynamics of atoms in a multimode cavity, where a quantum description of the full model becomes intractable.
dc.relation.ispartofPhysical Review. A, Atomic, molecular, and optical physicsen
dc.rights© 2019, American Physical Society. This work has been made available online in accordance with the publisher's policies. This is the author created accepted version manuscript following peer review and as such may differ slightly from the final published version. The final published version of this work is available at
dc.subjectQC Physicsen
dc.subjectTK Electrical engineering. Electronics Nuclear engineeringen
dc.titleAtom-only descriptions of the driven dissipative Dicke modelen
dc.typeJournal articleen
dc.contributor.institutionUniversity of St Andrews. School of Physics and Astronomyen
dc.contributor.institutionUniversity of St Andrews. Condensed Matter Physicsen
dc.description.statusPeer revieweden

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