Decoy-state measurement-device-independent quantum key distribution with mismatched-basis statistics  

作　　者：ZHANG ChunMei LI Mo YIN ZhenQiang LI HongWei CHEN Wei HAN ZhengFu 

机构地区：[1]Key Laboratory of Quantum Information, Chinese Academy of Sciences, University of Science and Technology of China [2]Synergetic Innovation Center of Quantum Information & Quantum Physics, University of Science and Technology of China

出　　处：《Science China(Physics,Mechanics & Astronomy)》2015年第9期1-4,共4页中国科学：物理学、力学、天文学（英文版）

基　　金：supported by the National Basic Research Program of China(Grant Nos.2011CBA00200 and 2011CB921200);the National Natural Science Foundation of China(Grant Nos.61201239,61205118,11304397 and 61475148);China Postdoctoral Science Foundation(Grant No.2013M540514);Anhui Provincial Natural Science Foundation(Grant No.1408085QF102)

摘　　要：Measurement-device-independent quantum key distribution(MDI-QKD) is aimed at removing all detector side channel attacks,while its security relies on the assumption that the encoding systems including sources are fully characterized by the two legitimate parties. By exploiting the mismatched-basis statistics in the security analysis, MDI-QKD even with uncharacterized qubits can generate secret keys. In this paper, considering the finite size effect, we study the decoy-state MDI-QKD protocol with mismatchedbasis events statistics by performing full parameter optimization, and the simulation result shows that this scheme is very practical.Measurement-device-independent quantum key distribution（MDI-QKD） is aimed at removing all detector side channel attacks,while its security relies on the assumption that the encoding systems including sources are fully characterized by the two legitimate parties. By exploiting the mismatched-basis statistics in the security analysis, MDI-QKD even with uncharacterized qubits can generate secret keys. In this paper, considering the finite size effect, we study the decoy-state MDI-QKD protocol with mismatchedbasis events statistics by performing full parameter optimization, and the simulation result shows that this scheme is very practical.

关 键 词：decoy-state method MDI-QKD full parameter optimization mismatched-basis statistics 

分 类 号：O413.1[理学—理论物理] TN918.4[理学—物理]