Passive Measurement-Device-Independent Quantum Key Distribution Based on Heralded Pair Coherent States

He Yefeng; Li Chunyu; Guo Jiarui; Zhao Yankun

doi:10.3788/CJL202047.0912002

Chinese Journal of Lasers, Volume. 47, Issue 9, 912002(2020)

Passive Measurement-Device-Independent Quantum Key Distribution Based on Heralded Pair Coherent States

He Yefeng¹, Li Chunyu^2、*, Guo Jiarui¹, and Zhao Yankun²

Author Affiliations

¹School of Cyberspace Security, Xi''an University of Posts and Telecommunications, Xi''an, Shaanxi 710121, China

²School of Communication and Information Engineering, Xi''an University of Posts and Telecommunications, Xi''an, Shaanxi 710121, China

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Figures & Tables(5)

Fig. 1. Schematic of MDI-QKD based on HPCS and PPM

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Fig. 2. Relationship between secure transmission distance and error rate

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Fig. 3. Relationship between secure transmission distance and key generation rate

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Table 1. Photon distributions of WCS source, HSPS, and HPCS source
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Table 1. Photon distributions of WCS source, HSPS, and HPCS source
Source Vacuum degree Number of single-photons Number of multi-photons
WCS source 0.6065 0.3033 0.0902
HSPS 1.94×10^-6 0.7274 0.2726
HPCS source 4.93×10^-6 0.9255 0.0744

Table 2. Main parameter values
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Table 2. Main parameter values
Parameter η_d /% p_d f
Value 0.75 1.0×10^-6 1.16

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He Yefeng, Li Chunyu, Guo Jiarui, Zhao Yankun. Passive Measurement-Device-Independent Quantum Key Distribution Based on Heralded Pair Coherent States[J]. Chinese Journal of Lasers, 2020, 47(9): 912002

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