Error tolerance of two-basis quantum key-distribution protocols using qudits and two-way classical communication

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dc.creatorNikolopoulos, Georgios M.
dc.creatorRanade, Kedar S.
dc.creatorAlber, Gernot
dc.date2006-02-01
dc.date.accessioned2026-07-07T07:04:13Z
dc.date.available2026-07-07T07:04:13Z
dc.descriptionWe investigate the error tolerance of quantum cryptographic protocols using $d$-level systems. In particular, we focus on prepare-and-measure schemes that use two mutually unbiased bases and a key-distillation procedure with two-way classical communication. For arbitrary quantum channels, we obtain a sufficient condition for secret-key distillation which, in the case of isotropic quantum channels, yields an analytic expression for the maximally tolerable error rate of the cryptographic protocols under consideration. The difference between the tolerable error rate and its theoretical upper bound tends slowly to zero for sufficiently large dimensions of the information carriers.
dc.description10 pages, 1 figure
dc.identifierhttps://arxiv.org/abs/quant-ph/0602008
dc.identifierhttp://arxiv.org/abs/quant-ph/0602008
dc.identifierPhys. Rev. A 73 (No. 3, March 2006), 032325
dc.identifierdoi:10.1103/PhysRevA.73.032325
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/109280
dc.subjectQuantum Physics
dc.titleError tolerance of two-basis quantum key-distribution protocols using qudits and two-way classical communication
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