Measurement-Device-Independent Quantum Key Distribution over Untrustful Metropolitan Network

被引：225

作者：

Tang, Yan-Lin ^{[1
,2
,3
,4
]}

Yin, Hua-Lei ^{[1
,2
,3
,4
]}

Zhao, Qi ^{[5
]}

Liu, Hui ^{[1
,2
,3
,4
]}

Sun, Xiang-Xiang ^{[1
,2
,3
,4
]}

Huang, Ming-Qi ^{[1
,2
,3
,4
]}

Zhang, Wei-Jun ^{[6
]}

Chen, Si-Jing ^{[6
]}

Zhang, Lu ^{[6
]}

You, Li-Xing ^{[6
]}

Wang, Zhen ^{[6
]}

Liu, Yang ^{[1
,2
,3
,4
]}

Lu, Chao-Yang ^{[1
,2
,3
,4
]}

Jiang, Xiao ^{[1
,2
,3
,4
]}

Ma, Xiongfeng ^{[5
]}

Zhang, Qiang ^{[1
,2
,3
,4
]}

Chen, Teng-Yun ^{[1
,2
,3
,4
]}

Pan, Jian-Wei ^{[1
,2
,3
,4
]}

机构：

[1] Univ Sci & Technol China, Natl Lab Phys Sci Microscale, Shanghai Branch, Shanghai 201315, Peoples R China

[2] Univ Sci & Technol China, Dept Modern Phys, Shanghai 201315, Peoples R China

[3] Univ Sci & Technol China, CAS Ctr Excellence, Hefei 230026, Anhui, Peoples R China

[4] Univ Sci & Technol China, Synerget Innovat Ctr Quantum Informat & Quantum P, Hefei 230026, Anhui, Peoples R China

[5] Tsinghua Univ, Ctr Quantum Informat Inst Interdisciplinary Infor, Beijing 100084, Peoples R China

[6] Chinese Acad Sci, Shanghai Inst Microsyst & Informat Technol, State Key Lab Funct Mat Informat, Shanghai 200050, Peoples R China

来源：

PHYSICAL REVIEW X | 2016年 / 6卷 / 01期

基金：

中国国家自然科学基金;

关键词：

CONTINUOUS-VARIABLES; CRYPTOGRAPHY; ILLUMINATION; DISCRETE; SECURITY;

D O I：

10.1103/PhysRevX.6.011024

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Quantum cryptography holds the promise to establish an information-theoretically secure global network. All field tests of metropolitan-scale quantum networks to date are based on trusted relays. The security critically relies on the accountability of the trusted relays, which will break down if the relay is dishonest or compromised. Here, we construct a measurement-device-independent quantum key distribution (MDIQKD) network in a star topology over a 200-square-kilometer metropolitan area, which is secure against untrustful relays and against all detection attacks. In the field test, our system continuously runs through one week with a secure key rate 10 times larger than previous results. Our results demonstrate that the MDIQKD network, combining the best of both worlds-security and practicality, constitutes an appealing solution to secure metropolitan communications.

引用

页数：8

共 36 条

[1]

Bennett C H, 1984, P IEEE INT C COMP SY, V175, P175

[2] Quantum cryptographic network based on quantum memories [J].

Biham, E ;

Huttner, B ;

Mor, T .

PHYSICAL REVIEW A, 1996, 54 (04) :2651-2658

[3] Multiparticle generalization of entanglement swapping [J].

Bose, S ;

Vedral, V ;

Knight, PL .

PHYSICAL REVIEW A, 1998, 57 (02) :822-829

[4] Side-Channel-Free Quantum Key Distribution [J].

Braunstein, Samuel L. ;

Pirandola, Stefano .

PHYSICAL REVIEW LETTERS, 2012, 108 (13)

[5] Dark counts of superconducting nanowire single-photon detector under illumination [J].

Chen, Sijing ;

You, Lixing ;

Zhang, Weijun ;

Yang, Xiaoyan ;

Li, Hao ;

Zhang, Lu ;

Wang, Zhen ;

Xie, Xiaoming .

OPTICS EXPRESS, 2015, 23 (08) :10786-10793

[6] Metropolitan all-pass and inter-city quantum communication network [J].

Chen, Teng-Yun ;

Wang, Jian ;

Liang, Hao ;

Liu, Wei-Yue ;

Liu, Yang ;

Jiang, Xiao ;

Wang, Yuan ;

Wan, Xu ;

Cai, Wen-Qi ;

Ju, Lei ;

Chen, Luo-Kan ;

Wang, Liu-Jun ;

Gao, Yuan ;

Chen, Kai ;

Peng, Cheng-Zhi ;

Chen, Zeng-Bing ;

Pan, Jian-Wei .

OPTICS EXPRESS, 2010, 18 (26) :27217-27225

[7]

Comandar L. C., ARXIV150908137

[8] Finite-key analysis for measurement-device-independent quantum key distribution [J].

Curty, Marcos ;

Xu, Feihu ;

Cui, Wei ;

Lim, Charles Ci Wen ;

Tamaki, Kiyoshi ;

Lo, Hoi-Kwong .

NATURE COMMUNICATIONS, 2014, 5

[9] Blind Quantum Computing with Weak Coherent Pulses [J].

Dunjko, Vedran ;

Kashefi, Elham ;

Leverrier, Anthony .

PHYSICAL REVIEW LETTERS, 2012, 108 (20)

[10] QUANTUM CRYPTOGRAPHY BASED ON BELL THEOREM [J].

EKERT, AK .

PHYSICAL REVIEW LETTERS, 1991, 67 (06) :661-663

← 1 2 3 4 →