Efficient use of quantum resources for the transmission of a reference frame

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dc.creatorChiribella, G.
dc.creatorD'Ariano, G. M.
dc.creatorPerinotti, P.
dc.creatorSacchi, M. F.
dc.date2004-05-17
dc.date2004-08-24
dc.date.accessioned2026-07-07T07:52:41Z
dc.date.available2026-07-07T07:52:41Z
dc.descriptionWe propose a covariant protocol for transmitting reference frames encoded on $N$ spins, achieving sensitivity $N^{-2}$ without the need of a pre-established reference frame and without using entanglement between sender and receiver. The protocol exploits the use of equivalent representations, which were overlooked in the previous literature.
dc.description4 pages, no figures; added new references and improved introduction. Accepted for publication on PRL
dc.identifierhttps://arxiv.org/abs/quant-ph/0405095
dc.identifierhttp://arxiv.org/abs/quant-ph/0405095
dc.identifierPhys. Rev. Lett 93, 180503 (2004)
dc.identifierdoi:10.1103/PhysRevLett.93.180503
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/125970
dc.subjectQuantum Physics
dc.titleEfficient use of quantum resources for the transmission of a reference frame
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