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

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Publication details

JournalPhysical Review Letters
DatePublished - 14 Nov 2008
Issue number20
Volume101
Number of pages4
Original languageEnglish

Abstract

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.

    Research areas

  • Quantum Key Distribution, Gaussian Attacks, Coherent States, Canonical Channels, Secret Keys

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