Realization schemes for quantum instruments in finite dimensions

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dc.creatorChiribella, Giulio
dc.creatorD'Ariano, Giacomo Mauro
dc.creatorPerinotti, Paolo
dc.date2008-10-17
dc.date2009-04-14
dc.date.accessioned2026-07-07T13:03:06Z
dc.date.available2026-07-07T13:03:06Z
dc.descriptionWe present a general dilation scheme for quantum instruments with continuous outcome space in finite dimensions, in terms of an indirect POVM measurement performed on a finite dimensional ancilla. The general result is then applied to a large class of instruments generated by operator frames, which contains group-covariant instruments as a particular case, and allows to construct dilation schemes based on a measurement on the ancilla followed by a conditional feed-forward operation on the output. In the case of tight operator frames our construction generalizes quantum teleportation and telecloning, producing a whole family of generalized teleportation schemes in which the instrument is realized via a joint POVM at the sender combined with a conditional feed-forward operation at the receiver.
dc.description22 pages, no figures, published version
dc.identifierhttps://arxiv.org/abs/0810.3211
dc.identifierhttp://arxiv.org/abs/0810.3211
dc.identifierJ. Math. Phys. 50, 042101 (2009)
dc.identifierdoi:10.1063/1.3105923
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/226677
dc.subjectQuantum Physics
dc.titleRealization schemes for quantum instruments in finite dimensions
dc.typetext

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