Information-Disturbance Tradeoff in Quantum State Discrimination

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dc.creatorBuscemi, Francesco
dc.creatorSacchi, Massimiliano F.
dc.date2006-10-23
dc.date2006-11-15
dc.date.accessioned2026-07-07T07:30:26Z
dc.date.available2026-07-07T07:30:26Z
dc.descriptionWhen discriminating between two pure quantum states, there exists a quantitative tradeoff between the information retrieved by the measurement and the disturbance caused on the unknown state. We derive the optimal tradeoff and provide the corresponding quantum measurement. Such an optimal measurement smoothly interpolates between the two limiting cases of maximal information extraction and no measurement at all.
dc.description5 pages, 2 (low-quality) figures. Eq. (20) corrected. Final published version
dc.identifierhttps://arxiv.org/abs/quant-ph/0610196
dc.identifierhttp://arxiv.org/abs/quant-ph/0610196
dc.identifierPhys. Rev. A 74, 052320 (2006)
dc.identifierdoi:10.1103/PhysRevA.74.052320
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/118455
dc.subjectQuantum Physics
dc.titleInformation-Disturbance Tradeoff in Quantum State Discrimination
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