Long distance quantum key distribution with continuous variables

Details Long distance quantum key distribution with continuous variables Long distance quantum key distribution with continuous variables

2010-05-03

arxiv.org/abs/1005.0328v3

Physics

Quantum Physics

11 pages, 3 figures

Scientific paper

We present a continuous-variable quantum key distribution protocol combining a continuous but slightly non-Gaussian modulation together with a efficient reverse reconciliation scheme. We establish the security of this protocol against collective attacks which correspond to a linear quantum channel. In particular, all Gaussian attacks are considered in our framework. We show that this protocol outperforms all known practical protocols, even taking into account finite size effects.

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