中国物理B ›› 2020, Vol. 29 ›› Issue (7): 70303-070303.doi: 10.1088/1674-1056/ab90f6

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One-decoy state reference-frame-independent quantum key distribution

Xiang Li(李想), Hua-Wei Yuan(远华伟), Chun-Mei Zhang(张春梅), Qin Wang(王琴)   

  1. 1 Institute of Quantum Information and Technology, Nanjing University of Posts and Telecommunications, Nanjing 210003, China;
    2 Broadband Wireless Communication and Sensor Network Technology, Key Laboratory of Ministry of Education, Nanjing University of Posts and Telecommunications, Nanjing 210003, China
  • 收稿日期:2020-03-01 修回日期:2020-04-22 出版日期:2020-07-05 发布日期:2020-07-05
  • 通讯作者: Qin Wang E-mail:qinw@njupt.edu.cn
  • 基金资助:
    Project supported by the National Key Research and Development Program of China (Grant Nos. 2018YFA0306400 and 2017YFA0304100), the National Natural Science Foundation of China (Grant Nos. 61590932, 11774180, and 61705110), and the Natural Science Foundation of Jiangsu Province for Leading-edge Technology Program, China (Grant No. BK20192001).

One-decoy state reference-frame-independent quantum key distribution

Xiang Li(李想)1,2, Hua-Wei Yuan(远华伟)1,2, Chun-Mei Zhang(张春梅)1,2, Qin Wang(王琴)1,2   

  1. 1 Institute of Quantum Information and Technology, Nanjing University of Posts and Telecommunications, Nanjing 210003, China;
    2 Broadband Wireless Communication and Sensor Network Technology, Key Laboratory of Ministry of Education, Nanjing University of Posts and Telecommunications, Nanjing 210003, China
  • Received:2020-03-01 Revised:2020-04-22 Online:2020-07-05 Published:2020-07-05
  • Contact: Qin Wang E-mail:qinw@njupt.edu.cn
  • Supported by:
    Project supported by the National Key Research and Development Program of China (Grant Nos. 2018YFA0306400 and 2017YFA0304100), the National Natural Science Foundation of China (Grant Nos. 61590932, 11774180, and 61705110), and the Natural Science Foundation of Jiangsu Province for Leading-edge Technology Program, China (Grant No. BK20192001).

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摘要： Reference-frame-independent quantum key distribution (RFI-QKD) has been proven to be very useful and practical under realistic environment. Here, we present a scheme for one-decoy state RFI-QKD based on the work of Rusca et al. [Appl. Phys. Lett. 112, 171104 (2018)], and carry out investigation on its performance under realistic experimental conditions. Numerical simulation results show that the one-decoy state RFI-QKD can achieve comparable performance in terms of secret key rate and transmission distance as the two-decoy state correspondence under practical experimental conditions. On contrast, it does not need to prepare the vacuum state in the former case, substantially reducing the experimental complexity and random number consumptions. Therefore, our present proposal seems very promising in practical implementations of RFI-QKD.

关键词: quantum key distribution, RFI-QKD, one decoy state

Abstract: Reference-frame-independent quantum key distribution (RFI-QKD) has been proven to be very useful and practical under realistic environment. Here, we present a scheme for one-decoy state RFI-QKD based on the work of Rusca et al. [Appl. Phys. Lett. 112, 171104 (2018)], and carry out investigation on its performance under realistic experimental conditions. Numerical simulation results show that the one-decoy state RFI-QKD can achieve comparable performance in terms of secret key rate and transmission distance as the two-decoy state correspondence under practical experimental conditions. On contrast, it does not need to prepare the vacuum state in the former case, substantially reducing the experimental complexity and random number consumptions. Therefore, our present proposal seems very promising in practical implementations of RFI-QKD.

Key words: quantum key distribution, RFI-QKD, one decoy state

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

  • 03.67.Dd
03.67.Hk (Quantum communication) 42.65.Lm (Parametric down conversion and production of entangled photons)