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arXiv · 0812.4246

Unconditional security proof of long-distance continuous-variable quantum key distribution with discrete modulation

Anthony Leverrier·Philippe Grangier
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Abstract

We present a continuous-variable quantum key distribution protocol combining a discrete modulation and reverse reconciliation. This protocol is proven unconditionally secure and allows the distribution of secret keys over long distances, thanks to a reverse reconciliation scheme efficient at very low signal-to-noise ratio.

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Anthony Leverrier, Philippe Grangier. 2008-12-22. Unconditional security proof of long-distance continuous-variable quantum key distribution with discrete modulation. https://doi.org/10.1103/physrevlett.102.180504

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