There exist non orthogonal quantum measurements that are perfectly repeatable

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dc.creatorBuscemi, F.
dc.creatorD'Ariano, G. M.
dc.creatorPerinotti, P.
dc.date2003-10-06
dc.date2003-12-15
dc.date.accessioned2026-07-07T07:52:55Z
dc.date.available2026-07-07T07:52:55Z
dc.descriptionWe show that, contrarily to the widespread belief, in quantum mechanics repeatable measurements are not necessarily described by orthogonal projectors--the customary paradigm of "observable". Nonorthogonal repeatability, however, occurs only for infinite dimensions. We also show that when a non orthogonal repeatable measurement is performed, the measured system retains some "memory" of the number of times that the measurement has been performed.
dc.description4 pages, 1 figure, revtex4, minor changes
dc.identifierhttps://arxiv.org/abs/quant-ph/0310041
dc.identifierhttp://arxiv.org/abs/quant-ph/0310041
dc.identifierPhys. Rev. Lett 92, 070403 (2004)
dc.identifierdoi:10.1103/PhysRevLett.92.070403
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/126057
dc.subjectQuantum Physics
dc.titleThere exist non orthogonal quantum measurements that are perfectly repeatable
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