Estimating entanglement measures in experiments

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dc.creatorGühne, O.
dc.creatorReimpell, M.
dc.creatorWerner, R. F.
dc.date2006-07-24
dc.date2007-03-12
dc.date.accessioned2026-07-07T07:53:41Z
dc.date.available2026-07-07T07:53:41Z
dc.descriptionWe present a method to estimate entanglement measures in experiments. We show how a lower bound on a generic entanglement measure can be derived from the measured expectation values of any finite collection of entanglement witnesses. Hence witness measurements are given a quantitative meaning without the need of further experimental data. We apply our results to a recent multi-photon experiment [M. Bourennane et al., Phys. Rev. Lett. 92, 087902 (2004)], giving bounds on the entanglement of formation and the geometric measure of entanglement in this experiment.
dc.description4 pages, 1 figure, v2: final version
dc.identifierhttps://arxiv.org/abs/quant-ph/0607163
dc.identifierhttp://arxiv.org/abs/quant-ph/0607163
dc.identifierPhys. Rev. Lett. 98, 110502 (2007)
dc.identifierdoi:10.1103/PhysRevLett.98.110502
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/126318
dc.subjectQuantum Physics
dc.titleEstimating entanglement measures in experiments
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