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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 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 |
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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.
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Received: 01 March 2020
Revised: 22 April 2020
Accepted manuscript online:
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PACS:
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03.67.Dd
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(Quantum cryptography and communication security)
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03.67.Hk
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(Quantum communication)
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42.65.Lm
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(Parametric down conversion and production of entangled photons)
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| Fund: 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). |
Corresponding Authors:
Qin Wang
E-mail: qinw@njupt.edu.cn
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Cite this article:
Xiang Li(李想), Hua-Wei Yuan(远华伟), Chun-Mei Zhang(张春梅), Qin Wang(王琴) One-decoy state reference-frame-independent quantum key distribution 2020 Chin. Phys. B 29 070303
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