Experimental demonstration of kilometer-range quantum digital signatures

被引：66

作者：

Donaldson, Ross J. ^{[1
]}

Collins, Robert J. ^{[1
]}

Kleczkowska, Klaudia ^{[1
]}

Amiri, Ryan ^{[1
]}

Wallden, Petros ^{[2
]}

Dunjko, Vedran ^{[3
,4
]}

Jeffers, John ^{[5
]}

Andersson, Erika ^{[1
]}

Buller, Gerald S. ^{[1
]}

机构：

[1] Heriot Watt Univ, Inst Photon & Quantum Sci, Sch Engn & Phys Sci, SUPA, David Brewster Bldg, Edinburgh EH14 4AS, Midlothian, Scotland

[2] Univ Edinburgh, Sch Informat, Informat Forum, 10 Crichton St, Edinburgh EH8 9AB, Midlothian, Scotland

[3] Univ Innsbruck, Inst Theoret Phys, Technikerstr 25, A-6020 Innsbruck, Austria

[4] Rudjer Boskovic Inst, Div Mol Biol, Bijenicka Cesta 54, Zagreb 10002, Croatia

[5] Univ Strathclyde, Dept Phys, SUPA, John Anderson Bldg,107 Rottenrow, Glasgow G4 0NG, Lanark, Scotland

来源：

PHYSICAL REVIEW A | 2016年 / 93卷 / 01期

基金：

英国工程与自然科学研究理事会;

关键词：

KEY DISTRIBUTION; AUTHENTICATION; SECURE; LONG;

D O I：

10.1103/PhysRevA.93.012329

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present an experimental realization of a quantum digital signature protocol which, together with a standard quantum key distribution link, increases transmission distance to kilometer ranges, three orders of magnitude larger than in previous realizations. The bit rate is also significantly increased compared with previous quantum signature demonstrations. This work illustrates that quantum digital signatures can be realized with optical components similar to those used for quantum key distribution and could be implemented in existing quantum optical fiber networks.

引用

页数：10

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