High rate, long-distance quantum key distribution over 250 km of ultra low loss fibres
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Open Access
- 1 July 2009
- journal article
- Published by IOP Publishing in New Journal of Physics
- Vol. 11 (7), 075003
- https://doi.org/10.1088/1367-2630/11/7/075003
Abstract
We present a fully automated quantum key distribution prototype running at 625 MHz clock rate. Taking advantage of ultra low loss (ULL) fibres and low-noise superconducting detectors, we can distribute 6000 secret bits s−1 over 100 km and 15 bits s−1 over 250 km.Keywords
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