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arXiv · 0903.3907

High rate, long-distance quantum key distribution over 250km of ultra low loss fibres

D. Stucki·N. Walenta·F. Vannel·R. T. Thew·N. Gisin·H. Zbinden·S. Gray·C. R. Towery·S. Ten
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Abstract

We present a fully automated quantum key distribution prototype running at 625 MHz clock rate. Taking advantage of ultra low loss fibres and low-noise superconducting detectors, we can distribute 6,000 secret bits per second over 100 km and 15 bits per second over 250km.

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D. Stucki, N. Walenta, F. Vannel, R. T. Thew, N. Gisin, H. Zbinden, S. Gray, C. R. Towery, S. Ten. 2009-03-23. High rate, long-distance quantum key distribution over 250km of ultra low loss fibres. https://doi.org/10.1088/1367-2630%2F11%2F7%2F075003

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