Analysis of three-intensity decoy-state phase-matching quantum key distribution Analysis of three-intensity PM-QKD

Phase-matching quantum key distribution (PM-QKD) protocol has been widely researched since it was proposed. This scheme is proven to beat the linear bound. In this paper, the performance of three-intensity decoy-state PM-QKD is discussed. The effects of various parameters on the performance of trans...

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Bibliographic Details
Published inThe European physical journal. D, Atomic, molecular, and optical physics Vol. 75; no. 11
Main Authors Song, Ziang, Huang, Guoqi, Dong, Qin, Jiao, Rongzhen
Format Journal Article
LanguageEnglish
Published Berlin/Heidelberg Springer Berlin Heidelberg 01.11.2021
Subjects
Applications of Nonlinear Dynamics and Chaos Theory
Atomic
Molecular
Optical and Plasma Physics
Physical Chemistry
Physics
Physics and Astronomy
Quantum Information Technology
Quantum Physics
Regular Article – Quantum Information
Spectroscopy/Spectrometry
Spintronics
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Summary:Phase-matching quantum key distribution (PM-QKD) protocol has been widely researched since it was proposed. This scheme is proven to beat the linear bound. In this paper, the performance of three-intensity decoy-state PM-QKD is discussed. The effects of various parameters on the performance of transmission system with statistical fluctuation and source error are analyzed by numerical simulation. The results show that the protocol has good performance. The effects of signal state intensity and decoy-state intensity on key rate are analyzed, and the optimal key rate and the intensity of signal and decoy states are given. Graphic abstract
ISSN:1434-6060
1434-6079
DOI:10.1140/epjd/s10053-021-00311-4