Experimental quantum key distribution over highly noisy channels

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dc.creatorLamoureux, L. P.
dc.creatorBrainis, E.
dc.creatorCerf, N.
dc.creatorEmplit, Ph.
dc.creatorHaelterman, M.
dc.creatorMassar, S.
dc.date2004-07-05
dc.date.accessioned2026-07-07T06:24:49Z
dc.date.available2026-07-07T06:24:49Z
dc.descriptionError filtration is a method for encoding the quantum state of a single particle into a higher dimensional Hilbert space in such a way that it becomes less sensitive to phase noise. We experimentally demonstrate this method by distributing a secret key over an optical fiber whose noise level otherwise precludes secure quantum key distribution. By filtering out the phase noise, a bit error rate of 15.3% +/- 0.1%, which is beyond the security limit, can be reduced to 10.6% +/- 0.1%, thereby guaranteeing the cryptographic security.
dc.description4 pages, 2 figures
dc.identifierhttps://arxiv.org/abs/quant-ph/0407031
dc.identifierhttp://arxiv.org/abs/quant-ph/0407031
dc.identifierPhysical Review Letters 94, 230501 (2005)
dc.identifierdoi:10.1103/PhysRevLett.94.230501
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/96676
dc.subjectQuantum Physics
dc.titleExperimental quantum key distribution over highly noisy channels
dc.typetext

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