A Note on Quantum Key Channel Efficiency and Security using Correlated Photon Beam Transmitters

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dc.creatorEdwards, PJ
dc.creatorCheung, W N
dc.creatorvan Pham, H
dc.creatorGanesharajah, G
dc.creatorLynam, P
dc.creatorBarbopoulos, L
dc.date2000-08-03
dc.date2000-08-04
dc.date.accessioned2026-07-07T06:00:34Z
dc.date.available2026-07-07T06:00:34Z
dc.descriptionQuantum-correlated photon sources provide a means of suppressing multiple photon emission and thus improving the security and efficiency of quasi single-photon quantum key distribution systems. We present illustrative photon-counting statistics for a Poissonian source conditioned by photon number measurements on a fully correlated twin beam with a non-ideal photon counter. We show that high photon counting efficiency is needed to obtain significant improvement in channel efficiency (bits per symbol) and/or security (in the form of reduced Shannon entropy leakage) over a single beam source.
dc.description3 Pages, 2 Figures
dc.identifierhttps://arxiv.org/abs/quant-ph/0008013
dc.identifierhttp://arxiv.org/abs/quant-ph/0008013
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/89003
dc.subjectQuantum Physics
dc.titleA Note on Quantum Key Channel Efficiency and Security using Correlated Photon Beam Transmitters
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