中国物理B ›› 2017, Vol. 26 ›› Issue (12): 120302-120302.doi: 10.1088/1674-1056/26/12/120302

• GENERAL • 上一篇    下一篇

Decoy-state reference-frame-independent quantum key distribution with both source errors and statistical fluctuations

Kang Liu(刘康), Jian Li(李剑), Jian-Rong Zhu(朱建荣), Chun-Mei Zhang(张春梅), Qin Wang(王琴)   

  1. 1. Institute of Signal Processing Transmission, Nanjing University of Posts and Telecommunications, Nanjing 210003, China;
    2. Key Laboratory of Broadband Wireless Communication and Sensor Network Technology of the Ministry of Education, Nanjing University of Posts and Telecommunications, Nanjing 210003, China;
    3. Department of Physics, Southeast University, Nanjing 211189, China
  • 收稿日期:2017-04-06 修回日期:2017-06-02 出版日期:2017-12-05 发布日期:2017-12-05
  • 通讯作者: Chun-Mei Zhang, Chun-Mei Zhang E-mail:cmz@njupt.edu.cn;qinw@njupt.edu.cn
  • 基金资助:
    Project supported by the National Key Research and Development Program of China (Grant No. 2017YFA0304100), the National Natural Science Foundation of China (Grant Nos. 61475197, 61590932, 11774180, and 61705110), the Natural Science Foundation of the Jiangsu Higher Education Institutions (Grant Nos. 15KJA120002 and 17KJB140016), the Outstanding Youth Project of Jiangsu Province, China (Grant No. BK20150039), the Natural Science Foundation of Jiangsu Province, China (Grant No. BK20170902), and the Science Fund from the Nanjing University of Posts and Telecommunications, China (Grant No. NY217006).

Decoy-state reference-frame-independent quantum key distribution with both source errors and statistical fluctuations

Kang Liu(刘康)1,2, Jian Li(李剑)1,3, Jian-Rong Zhu(朱建荣)1,2, Chun-Mei Zhang(张春梅)1,2, Qin Wang(王琴)1,2   

  1. 1. Institute of Signal Processing Transmission, Nanjing University of Posts and Telecommunications, Nanjing 210003, China;
    2. Key Laboratory of Broadband Wireless Communication and Sensor Network Technology of the Ministry of Education, Nanjing University of Posts and Telecommunications, Nanjing 210003, China;
    3. Department of Physics, Southeast University, Nanjing 211189, China
  • Received:2017-04-06 Revised:2017-06-02 Online:2017-12-05 Published:2017-12-05
  • Contact: Chun-Mei Zhang, Chun-Mei Zhang E-mail:cmz@njupt.edu.cn;qinw@njupt.edu.cn
  • Supported by:
    Project supported by the National Key Research and Development Program of China (Grant No. 2017YFA0304100), the National Natural Science Foundation of China (Grant Nos. 61475197, 61590932, 11774180, and 61705110), the Natural Science Foundation of the Jiangsu Higher Education Institutions (Grant Nos. 15KJA120002 and 17KJB140016), the Outstanding Youth Project of Jiangsu Province, China (Grant No. BK20150039), the Natural Science Foundation of Jiangsu Province, China (Grant No. BK20170902), and the Science Fund from the Nanjing University of Posts and Telecommunications, China (Grant No. NY217006).

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摘要： Reference-frame-independent quantum key distribution (RFI QKD) can generate secret keys without the alignment of reference frames, which is very robust in real-life implementations of QKD systems. However, the performance of decoy-state RFI QKD with both source errors and statistical fluctuations is still missing until now. In this paper, we investigate the performance of decoy-state RFI QKD in practical scenarios with two kinds of light sources, the heralded single photon source (HSPS) and the weak coherent source (WCS), and also give clear comparison results of decoy-state RFI QKD with WCS and HSPS. Simulation results show that the secret key rates of decoy-state RFI QKD with WCS are higher than those with HSPS in short distance range, but the secret key rates of RFI QKD with HSPS outperform those with WCS in long distance range.

关键词: quantum key distribution, reference-frame-independent, statistical fluctuations, source errors

Abstract: Reference-frame-independent quantum key distribution (RFI QKD) can generate secret keys without the alignment of reference frames, which is very robust in real-life implementations of QKD systems. However, the performance of decoy-state RFI QKD with both source errors and statistical fluctuations is still missing until now. In this paper, we investigate the performance of decoy-state RFI QKD in practical scenarios with two kinds of light sources, the heralded single photon source (HSPS) and the weak coherent source (WCS), and also give clear comparison results of decoy-state RFI QKD with WCS and HSPS. Simulation results show that the secret key rates of decoy-state RFI QKD with WCS are higher than those with HSPS in short distance range, but the secret key rates of RFI QKD with HSPS outperform those with WCS in long distance range.

Key words: quantum key distribution, reference-frame-independent, statistical fluctuations, source errors

中图分类号:  (Quantum cryptography and communication security)

  • 03.67.Dd
03.67.Hk (Quantum communication)