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arXiv · 1002.4083

Continuous-variable Quantum Key Distribution protocols with a discrete modulation

Anthony Leverrier·Philippe Grangier
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Abstract

In this paper, we consider continuous-variable quantum key distribution with a discrete modulation, either binary or quaternary. We establish the security of these protocols against the class of collective attacks that induce a linear quantum channel. In particular, all Gaussian attacks are taken into account, as well as linear attacks which add a non-Gaussian noise. We give lower bounds for the secret key rate using extremality properties of Gaussian states.

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Anthony Leverrier, Philippe Grangier. 2010-02-22. Continuous-variable Quantum Key Distribution protocols with a discrete modulation. https://arxiv.org/abs/1002.4083

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