期刊
PHYSICAL REVIEW A
卷 81, 期 6, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.81.062314
关键词
-
资金
- Agence Nationale de la Recherche [ANR-06-NANO-041-05, ANR-07-SESU-011-01]
In this article, we give a simple proof of the fact that the optimal collective attacks against continuous-variable quantum key distribution with a Gaussian modulation are Gaussian attacks. Our proof, which makes use of symmetry properties of the protocol in phase space, is particularly relevant for the finite-key analysis of the protocol and therefore for practical applications.
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