Optimality of Gaussian Attacks in Continuous Variable Quantum Cryptography

Miguel Navascues, Frederic Grosshans, Antonio Acin

Research output: Contribution to journalArticle (Academic Journal)peer-review

278 Citations (Scopus)

Abstract

We analyze the asymptotic security of the family of Gaussian modulated Quantum Key Distribution protocols for Continuous Variables systems. We prove that the Gaussian unitary attack is optimal for all the considered bounds on the key rate when the first and second momenta of the canonical variables involved are known by the honest parties.
Original languageUndefined/Unknown
JournalPhysical Review Letters
Volume97
Issue number190502
DOIs
Publication statusPublished - 3 Aug 2006

Bibliographical note

See also R. Garcia-Patron and N. Cerf, quant-ph/0608032

Keywords

  • quant-ph

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