Fuzzy Greenberger-Horne-Zeilinger state analyzer and multiparty measurement-device-independent quantum key distribution network

被引：1

作者：

Zhang, Litao ^{[1
]}

Hu, Min ^{[1
]}

Ran, Pan ^{[1
]}

Zeng, Hanyu ^{[1
]}

Li, Jun ^{[2
]}

Guo, Banghong ^{[1
,2
,3
,4
,5
]}

机构：

[1] South China Normal Univ, Sch Informat & Optoelect Sci & Engn, Guangdong Prov Key Lab Nanophoton Funct Mat & Dev, Guangzhou, Guangdong, Peoples R China

[2] South China Normal Univ, South China Acad Adv Optoelect, Guangzhou, Guangdong, Peoples R China

[3] Shenzhen Univ, Coll Comp Sci & Software Engn, Shenzhen, Peoples R China

[4] Chinese Acad Sci, State Key Lab Transient Opt & Photon, Xian, Shaanxi, Peoples R China

[5] Chinese Acad Sci, Univ Sci & Technol China, Key Lab Quantum Informat, Hefei, Anhui, Peoples R China

来源：

OPTICAL ENGINEERING | 2019年 / 58卷 / 01期

基金：

中国国家自然科学基金;

关键词：

quantum key distribution; quantum information; Greenberger-Horne-Zeilinger state; quantum entanglement; measurement-device-independent; CRYPTOGRAPHY; SECURITY;

D O I：

10.1117/1.OE.58.1.016113

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Greenberger-Horne-Zeilinger (GHZ) state is an essential resource in quantum processing. We propose multiparty measurement-device-independent quantum key distribution (MDI-QKD) protocol based on a fuzzy GHZ state analyzer, which is composed of linear optical components. Our scheme requires only N detectors and N - 1 polarizing beam splitters to realize an N-party MDI-QKD network. From numerical simulations, the security communication distance is improved to 300 km, and key rate is determined to be higher than 10-14. Compared with the previous work, our scheme needs less optical components and detectors, is easier to extend more users, and narrows the gap between theory and practice in multiparty MDI-QKD network. (C) 2019 Society of Photo-Optical Instrumentation Engineers (SPIE)

引用

页数：7

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