Mixed state sensitivity of several quantum information benchmarks

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dc.creatorPeters, Nicholas A.
dc.creatorWei, Tzu-Chieh
dc.creatorKwiat, Paul G.
dc.date2004-07-22
dc.date2004-10-22
dc.date.accessioned2026-07-07T06:10:23Z
dc.date.available2026-07-07T06:10:23Z
dc.descriptionWe investigate an imbalance between the sensitivity of the common state measures--fidelity, trace distance, concurrence, tangle, von Neumann entropy and linear entropy--when acted on by a depolarizing channel. Further, in this context we explore two classes of two-qubit entangled mixed states. Specifically, we illustrate a sensitivity imbalance between three of these measures for depolarized (i.e., Werner-state like) nonmaximally entangled and maximally entangled mixed states, noting that the size of the imbalance depends on the state's tangle and linear entropy.
dc.description6 pages, 3 figures; corrected typos and expression (17)
dc.identifierhttps://arxiv.org/abs/quant-ph/0407172
dc.identifierhttp://arxiv.org/abs/quant-ph/0407172
dc.identifierPRA v70, 052309, (2004)
dc.identifierdoi:10.1103/PhysRevA.70.052309
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/92246
dc.subjectQuantum Physics
dc.titleMixed state sensitivity of several quantum information benchmarks
dc.typetext

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