Experimental open air quantum key distribution with a single photon source

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dc.creatorAlleaume, Romain
dc.creatorTreussart, Francois
dc.creatorMessin, Gaetan
dc.creatorDumeige, Yannick
dc.creatorRoch, Jean-Francois
dc.creatorBeveratos, Alexios
dc.creatorBrouri-Tualle, Rosa
dc.creatorPoizat, Jean-Philippe
dc.creatorGrangier, Philippe
dc.date2004-02-17
dc.date.accessioned2026-07-07T08:23:29Z
dc.date.available2026-07-07T08:23:29Z
dc.descriptionWe present a full implementation of a quantum key distribution (QKD) system with a single photon source, operating at night in open air. The single photon source at the heart of the functional and reliable setup relies on the pulsed excitation of a single nitrogen-vacancy color center in diamond nanocrystal. We tested the effect of attenuation on the polarized encoded photons for inferring longer distance performance of our system. For strong attenuation, the use of pure single photon states gives measurable advantage over systems relying on weak attenuated laser pulses. The results are in good agreement with theoretical models developed to assess QKD security.
dc.identifierhttps://arxiv.org/abs/quant-ph/0402110
dc.identifierhttp://arxiv.org/abs/quant-ph/0402110
dc.identifierNew Journal of Physics 6 (2004) 92
dc.identifierdoi:10.1088/1367-2630/6/1/092
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/136016
dc.subjectQuantum Physics
dc.titleExperimental open air quantum key distribution with a single photon source
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