Experimental demonstration of passive decoy state quantum key distribution

doi:10.1088/1674-1056/21/10/100307

Abstract Passive decoy state quantum key distribution (PDS-QKD) has advantages in high-speed scenarios. We propose a modified model to simulate the PDS-QKD with a weak coherent light source based on Curty's theory [Opt. Lett.34 3238 (2009)]. The modified model can provide better performance in a practical PDS-QKD system. Moreover, we report an experimental demonstration of the PDS-QKD of over 22.0-dB channel loss.

Keywords: quantum key distribution passive decoy state method

Received: 12 April 2012
Revised: 21 June 2012
Accepted manuscript online:

PACS:

03.67.Dd

(Quantum cryptography and communication security)

Fund: Project supported by the National Basic Research Program of China (Grants Nos. 2011CBA00200 and 2011CB921200), the National Natural Science Foundation of China (Grant Nos. 60921091 and 61101137), and the China Postdoctoral Science Foundation (Grant Nos. 20100480695 and 2012M511419).

Corresponding Authors: Wang Shuang, Yin Zhen-Qiang
E-mail: wshuang@ustc.edu.cn; yinzheqi@mail.ustc.edu.cn

Cite this article:

Zhang Yang (张阳), Wang Shuang (王双银), Yin Zhen-Qiang (振强), Chen Wei (陈巍), Liang Wen-Ye (梁文烨), Li Hong-Wei (李宏伟), Guo Guang-Can (郭光灿), Han Zheng-Fu (韩正甫) Experimental demonstration of passive decoy state quantum key distribution 2012 Chin. Phys. B 21 100307

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Experimental demonstration of passive decoy state quantum key distribution

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