Open AccessSecurity of a discretely signaled continuous variable quantum key distribution protocol for high rate systems
Author(s) -
Zheshen Zhang,
Paul L. Voss
Publication year - 2009
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.17.012090
Subject(s) - quantum key distribution , computer science , detector , protocol (science) , quantum cryptography , imperfect , lossy compression , quantum , quantum channel , key (lock) , noise (video) , variable (mathematics) , algorithm , optics , theoretical computer science , physics , quantum information , computer security , telecommunications , quantum mechanics , mathematics , medicine , mathematical analysis , linguistics , philosophy , alternative medicine , pathology , artificial intelligence , image (mathematics)
We propose a continuous variable based quantum key distribution protocol that makes use of discretely signaled coherent light and reverse error reconciliation. We present a rigorous security proof against collective attacks with realistic lossy, noisy quantum channels, imperfect detector efficiency, and detector electronic noise. This protocol is promising for convenient, high-speed operation at link distances up to 50 km with the use of post-selection.