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Article Dans Une Revue Physical Review Letters Année : 2013

Security of Continuous-Variable Quantum Key Distribution Against General Attacks

Résumé

We prove the security of Gaussian continuous-variable quantum key distribution with coherent states against arbitrary attacks in the finite-size regime. In contrast to previously known proofs of principle (based on the de Finetti theorem), our result is applicable in the practically relevant finite-size regime. This is achieved using a novel proof approach, which exploits phase-space symmetries of the protocols as well as the postselection technique introduced by Christandl, Koenig, and Renner [Phys. Rev. Lett. 102, 020504 (2009)PRLTAO0031-9007].

Dates et versions

hal-00917115 , version 1 (11-12-2013)

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Citer

Anthony Leverrier, Raúl García-Patrón, Renato Renner, Nicolas J. Cerf. Security of Continuous-Variable Quantum Key Distribution Against General Attacks. Physical Review Letters, 2013, 110 (3), pp.30502. ⟨10.1103/PHYSREVLETT.110.030502⟩. ⟨hal-00917115⟩

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