Quantum privacy amplification and the security of quantum cryptography over noisy channels

Simple item page
dc.creatorDeutsch, D.
dc.creatorEkert, A.
dc.creatorJozsa, R.
dc.creatorMacchiavello, C.
dc.creatorPopescu, S.
dc.creatorSanpera, A.
dc.date1996-04-30
dc.date.accessioned2026-07-07T12:33:20Z
dc.date.available2026-07-07T12:33:20Z
dc.descriptionExisting quantum cryptographic schemes are not, as they stand, operable in the presence of noise on the quantum communication channel. Although they become operable if they are supplemented by classical privacy-amplification techniques, the resulting schemes are difficult to analyse and have not been proved secure. We introduce the concept of quantum privacy amplification and a cryptographic scheme incorporating it which is provably secure over a noisy channel. The scheme uses an `entanglement purification' procedure which, because it requires only a few quantum Controlled-Not and single-qubit operations, could be implemented using technology that is currently being developed. The scheme allows an arbitrarily small bound to be placed on the information that any eavesdropper may extract from the encrypted message.
dc.description13 pages, Latex including 2 postcript files included using psfig macros
dc.identifierhttps://arxiv.org/abs/quant-ph/9604039
dc.identifierhttp://arxiv.org/abs/quant-ph/9604039
dc.identifierPhys.Rev.Lett.77:2818-2821,1996; Erratum-ibid.80:2022-2022,1998
dc.identifierdoi:10.1103/PhysRevLett.77.2818
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/217091
dc.subjectQuantum Physics
dc.titleQuantum privacy amplification and the security of quantum cryptography over noisy channels
dc.typetext

Files

Collections

arXiv