Direct measurement of finite-time disentanglement induced by a reservoir

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dc.creatorSantos, M. Franca
dc.creatorMilman, P.
dc.creatorDavidovich, L.
dc.creatorZagury, N.
dc.date2005-09-29
dc.date2006-01-05
dc.date.accessioned2026-07-07T06:43:45Z
dc.date.available2026-07-07T06:43:45Z
dc.descriptionWe propose a method for directly probing the dynamics of disentanglement of an initial two-qubit entangled state, under the action of a reservoir. We show that it is possible to detect disentanglement, for experimentally realizable examples of decaying systems, through the measurement of a single observable, which is invariant throughout the decay. The systems under consideration may lead to either finite-time or asymptotic disentanglement. A general prescription for measuring this observable, which yields an operational meaning to entanglement measures, is proposed, and exemplified for cavity quantum electrodynamics and trapped ions.
dc.description4 pages, 2 figures
dc.identifierhttps://arxiv.org/abs/quant-ph/0509204
dc.identifierhttp://arxiv.org/abs/quant-ph/0509204
dc.identifierPhys. Rev. A 73, 040305(R) (2006) (4 pages)
dc.identifierdoi:10.1103/PhysRevA.73.040305
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/102535
dc.subjectQuantum Physics
dc.titleDirect measurement of finite-time disentanglement induced by a reservoir
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