An enhanced proposal on decoy-state measurement device-independent quantum key distribution |
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| Authors: | Qin Wang Chun-Hui Zhang Shunlong Luo Guang-Can Guo |
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| Affiliation: | 1.Institute of Signal Processing and Transmission,Nanjing University of Posts and Telecommunications,Nanjing,China;2.Key Lab of Broadband Wireless Communication and Sensor Network Technology,Nanjing University of Posts and Telecommunications Ministry of Education,Nanjing,China;3.Academy of Mathematics and Systems Science,Chinese Academy of Sciences,Beijing,China;4.Key Laboratory of Quantum Information,University of Science and Technology of China,Hefei,China |
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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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