Entanglement and the Phase Transition in Single Mode Superradiance

dc.creatorLambert, Neill
dc.creatorEmary, Clive
dc.creatorBrandes, Tobias
dc.date2003-09-02
dc.date.accessioned2026-07-07T12:55:49Z
dc.date.available2026-07-07T12:55:49Z
dc.descriptionWe consider the entanglement properties of the quantum phase transition in the single-mode superradiance model, involving the interaction of a boson mode and an ensemble of atoms. For infinite system size, the atom-field entanglement of formation diverges logarithmically with the correlation length exponent. Using a continuous variable representation, we compare this to the divergence of the entropy in conformal field theories, and derive an exact expression for the scaled concurrence and the cusp-like non-analyticity of the momentum squeezing.
dc.description4 pages, 2 figues
dc.identifierhttps://arxiv.org/abs/quant-ph/0309027
dc.identifierhttp://arxiv.org/abs/quant-ph/0309027
dc.identifierPhys.Rev.Lett.92:073602,2004
dc.identifierdoi:10.1103/PhysRevLett.92.073602
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/224381
dc.subjectQuantum Physics
dc.subjectCondensed Matter
dc.titleEntanglement and the Phase Transition in Single Mode Superradiance
dc.typetext

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