Informationally complete measurements and groups representation

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dc.creatorD'Ariano, G. M.
dc.creatorPerinotti, P.
dc.creatorSacchi, M. F.
dc.date2003-10-02
dc.date2003-10-06
dc.date.accessioned2026-07-07T07:52:55Z
dc.date.available2026-07-07T07:52:55Z
dc.descriptionInformationally complete measurements on a quantum system allow to estimate the expectation value of any arbitrary operator by just averaging functions of the experimental outcomes. We show that such kind of measurements can be achieved through positive-operator valued measures (POVM's) related to unitary irreducible representations of a group on the Hilbert space of the system. With the help of frame theory we provide a constructive way to evaluate the data-processing function for arbitrary operators.
dc.description9 pages, no figures, IOP style. Some new references added
dc.identifierhttps://arxiv.org/abs/quant-ph/0310013
dc.identifierhttp://arxiv.org/abs/quant-ph/0310013
dc.identifierJ. Opt. B: Quantum and Semicl. Optics, vol. 6, S487 (2004).
dc.identifierdoi:10.1088/1464-4266/6/6/005
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/126056
dc.subjectQuantum Physics
dc.titleInformationally complete measurements and groups representation
dc.typetext

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