Characterization of Collective Gaussian Attacks and Security of Coherent-State Quantum Cryptography

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We provide a simple description of the most general collective Gaussian attack in continuous-variable quantum cryptography. In the scenario of such general attacks, we analyze the asymptotic secret-key rates which are achievable with coherent states, joint measurements of the quadratures and one-way classical communication.
4 pages, 1 figure + 1 Table, REVteX. More descriptive title

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Quantum Physics, Optics

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http://salesiana.dossiersoluciones.com/handle/123456789/209173

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0806.4207
 http://arxiv.org/abs/0806.4207
 Phys. Rev. Lett. 101, 200504 (2008)
 doi:10.1103/PhysRevLett.101.200504

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arXiv