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Journal Article

Asymptotic security of binary modulated continuous-variable quantum key distribution under collective attacks

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Heid,  Matthias
Max Planck Research Group, Max Planck Institute for the Science of Light, Max Planck Society;

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Luetkenhaus,  Norbert
Max Planck Research Group, Max Planck Institute for the Science of Light, Max Planck Society;

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Citation

Zhao, Y.-B., Heid, M., Rigas, J., & Luetkenhaus, N. (2009). Asymptotic security of binary modulated continuous-variable quantum key distribution under collective attacks. PHYSICAL REVIEW A, 79(1): 012307. doi:10.1103/PhysRevA.79.012307.


Cite as: https://hdl.handle.net/11858/00-001M-0000-002D-6C37-B
Abstract
We estimate a lower bound to the secret key rate of a binary modulated continuous variable quantum key distribution scheme. We consider the collective attack scenario with quantum channels that impose arbitrary noise on the exchanged signals. The analysis is done in the infinite key limit. Bob performs ideal homodyne measurements on the received states and the two honest parties employ a reverse reconciliation procedure in the classical postprocessing step of the protocol.