Entanglement and purity of two-mode Gaussian states in noisy channels

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dc.creatorSerafini, Alessio
dc.creatorIlluminati, Fabrizio
dc.creatorParis, Matteo G. A.
dc.creatorDe Siena, Silvio
dc.date2003-10-13
dc.date2004-02-27
dc.date.accessioned2026-07-07T06:08:04Z
dc.date.available2026-07-07T06:08:04Z
dc.descriptionWe study the evolution of purity, entanglement and total correlations of general two--mode Gaussian states of continuous variable systems in arbitrary uncorrelated Gaussian environments. The time evolution of purity, Von Neumann entropy, logarithmic negativity and mutual information is analyzed for a wide range of initial conditions. In general, we find that a local squeezing of the bath leads to a faster degradation of purity and entanglement, while it can help to preserve the mutual information between the modes.
dc.description10 pages, 8 figures
dc.identifierhttps://arxiv.org/abs/quant-ph/0310087
dc.identifierhttp://arxiv.org/abs/quant-ph/0310087
dc.identifierPhys. Rev. A 69, 022318 (2004)
dc.identifierdoi:10.1103/PhysRevA.69.022318
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/91510
dc.subjectQuantum Physics
dc.subjectCondensed Matter
dc.titleEntanglement and purity of two-mode Gaussian states in noisy channels
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