High rate, long-distance quantum key distribution over 250 km of ultra low loss fibres
Damien StuckiGroup of Applied Physics, University of Geneva, 1211 Geneva 4, SwitzerlandNino WalentaGroup of Applied Physics, University of Geneva, 1211 Geneva 4, SwitzerlandFabien VannelGroup of Applied Physics, University of Geneva, 1211 Geneva 4, SwitzerlandRob ThewGroup of Applied Physics, University of Geneva, 1211 Geneva 4, SwitzerlandNicolas GisinGroup of Applied Physics, University of Geneva, 1211 Geneva 4, SwitzerlandHugo ZbindenGroup of Applied Physics, University of Geneva, 1211 Geneva 4, SwitzerlandS. GrayCorning Incorporated, Corning, NY 14831, USAChristopher ToweryCorning Incorporated, Corning, NY 14831, USAS. TenCorning Incorporated, Corning, NY 14831, USA
2009en
ABI
Аннотация
We present a fully automated quantum key distribution prototype running at 625MHz clock rate. Taking advantage of ultra low loss (ULL) fibres and low-noise superconducting detectors, we can distribute 6000 secretbits s?1 over 100 km and 15 bits s?1 over 250 km.
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