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An enhanced proposal on decoy-state measurement device-independent quantum key distribution

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Abstract

By employing pulses involving three-intensity, we propose a scheme for the measurement device-independent quantum key distribution with heralded single-photon sources. We make a comparative study of this scheme with the standard three-intensity decoy-state scheme using weak coherent sources or heralded single-photon sources. The advantage of this scheme is illustrated through numerical simulations: It can approach very closely the asymptotic case of using an infinite number of decoy-states and exhibits excellent behavior in both the secure transmission distance and the final key generation rate.

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Acknowledgments

We would like to thank Prof. X. B. Wang for useful discussion during this work. We gratefully acknowledge the financial support from the National Natural Science Foundation of China through Grant Nos. 11274178, 61475197 and 61590932, the Natural Science Foundation of the Jiangsu Higher Education Institutions through Grant No. 15KJA120002, the Outstanding Youth Project of Jiangsu Province through Grant No. BK20150039 and the Priority Academic Program Development of Jiangsu Higher Education Institutions through Grant No. YX002001.

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Authors and Affiliations

  1. Institute of Signal Processing and Transmission, Nanjing University of Posts and Telecommunications, Nanjing, 210003, China

    Qin Wang, Chun-Hui Zhang & Guang-Can Guo

  2. Key Lab of Broadband Wireless Communication and Sensor Network Technology, Nanjing University of Posts and Telecommunications Ministry of Education, Nanjing, 210003, China

    Qin Wang & Chun-Hui Zhang

  3. Academy of Mathematics and Systems Science, Chinese Academy of Sciences, 100190, Beijing, China

    Shunlong Luo

  4. Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei, 230026, China

    Qin Wang & Guang-Can Guo

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  1. Qin Wang
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  2. Chun-Hui Zhang
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  3. Shunlong Luo
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  4. Guang-Can Guo
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Correspondence to Qin Wang.

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Wang, Q., Zhang, CH., Luo, S. et al. An enhanced proposal on decoy-state measurement device-independent quantum key distribution. Quantum Inf Process 15, 3785–3797 (2016). https://doi.org/10.1007/s11128-016-1359-z

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  • DOI: https://doi.org/10.1007/s11128-016-1359-z

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