2012/06/01 by Jing-Zheng Huang, J.Z. Huang, Zhen−Qiang Yin +7
Computer Science · Physics and Astronomy · #Quantum Computing Algorithms and Architecture #Quantum Information and Cryptography #Quantum Mechanics and Applications #quant-ph
paper · pdf · doi:10.1140/epjd/e2012-20757-5
published as Eur. Phys. J. D (2012) 66: 159 · 6 pages, 5 figures. EPJD accepted
openalex publication_date 2012/06/01 · arxiv created 2012/06/28 · arxiv updated 2012/07/04 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We study how the imperfection of intensity modulator effects on the security of a practical quantum key distribution system. The extinction ratio of the realistic intensity modulator is considered in our security analysis. We show that the secret key rate increases, under the practical assumption that the indeterminable noise introduced by the imperfect intensity modulator can not be controlled by the eavesdropper.