典型文献
Performance of passive decoy-state quantum key distribution with mismatched local detectors
文献摘要：
In quantum key distribution (QKD),the passive decoy-state method can simplify the intensity modulation and reduce some of side-channel information leakage and modulation errors.It is usually implemented with a heralded single-photon source.In Wang et al 2016 (Phys.Rev.A 96032312),a novel passive decoy-state method is proposed by Wang et al,which uses two local detectors to generate more detection events for tightly estimating channel parameters.However,in the original scheme,the two local detectors are assumed to be identical,including the same detection efficiency and dark count rate,which is often not satisfied in the realistic experiment.In this paper,we construct a model for this passive decoy-state QKD scheme with two mismatched detectors and explore the effect on QKD performance with certain parameters.We also take the finite-size effect into consideration,showing the performance with statistical fluctuations.The results show that the efficiencies of local detectors affect the key rate more obviously than dark count rates.
文献关键词：
中图分类号：
作者姓名：
Kai Yu;Chun-Hui Zhang;Xing-Yu Zhou;Qin Wang
作者机构：
Institute of Quantum Information and Technology,Nanjing University of Posts and Telecommunications,Nanjing 210003,China;Key Laboratory of Quantum Information,University of Science and Technology of China,Chinese Academy of Sciences,Hefei 230026,China;National Laboratory of Solid State Microstructures,Nanjing University,Nanjing 210093,China
文献出处：
引用格式：
[1]Kai Yu;Chun-Hui Zhang;Xing-Yu Zhou;Qin Wang-.Performance of passive decoy-state quantum key distribution with mismatched local detectors)[J].理论物理,2022(01):40-45
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AB值：
0.560995
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