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典型文献
Finite-key analysis of practical time-bin high-dimensional quantum key distribution with afterpulse effect
文献摘要:
High-dimensional quantum resources provide the ability to encode several bits of information on a single photon,which can particularly increase the secret key rate rate of quantum key distribution(QKD)systems.Recently,a practical four-dimensional QKD scheme based on time-bin quantum photonic state,only with two single-photon avalanche detectors as measurement setup,has been proven to have a superior performance than the qubit-based one.In this paper,we extend the results to our proposed eight-dimensional scheme.Then,we consider two main practical factors to improve its secret key bound.Concretely,we take the afterpulse effect into account and apply a finite-key analysis with the intensity fluctuations.Our secret bounds give consideration to both the intensity fluctuations and the afterpulse effect for the high-dimensional QKD systems.Numerical simulations show the bound of eight-dimensional QKD scheme is more robust to the intensity fluctuations but more sensitive to the afterpulse effect than the four-dimensional one.
文献关键词:
作者姓名:
YuZhou;ChunZhou;Yang Wang;Yi-Fei Lu;Mu-Sheng Jiang;Xiao-Xu Zhang;Wan-Su Bao
作者机构:
Henan Key Laboratory of Quantum Information and Cryptography,SSFIEU,Zhengzhou 450001,China;Synergetic Innovation Center of Quantum Information and Quantum Physics,University of Science and Technology of China,Hefei 230026,China
引用格式:
[1]YuZhou;ChunZhou;Yang Wang;Yi-Fei Lu;Mu-Sheng Jiang;Xiao-Xu Zhang;Wan-Su Bao-.Finite-key analysis of practical time-bin high-dimensional quantum key distribution with afterpulse effect)[J].中国物理B(英文版),2022(08):260-266
A类:
afterpulse
B类:
Finite,key,analysis,practical,bin,high,dimensional,quantum,distribution,effect,High,resources,provide,ability,encode,several,bits,information,single,which,can,particularly,increase,secret,rate,QKD,systems,Recently,four,scheme,photonic,state,only,two,avalanche,detectors,measurement,setup,has,been,proven,have,superior,performance,than,qubit,one,In,this,paper,we,extend,results,proposed,eight,Then,main,factors,improve,Concretely,take,into,account,apply,finite,intensity,fluctuations,Our,bounds,give,consideration,both,Numerical,simulations,show,more,robust,sensitive
AB值:
0.492777
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