Practical challenges in quantum key distribution

被引：562

作者：

Diamanti, Eleni ^{[1
]}

Lo, Hoi-Kwong ^{[2
,3
]}

Qi, Bing ^{[4
,5
]}

Yuan, Zhiliang ^{[6
,7
]}

机构：

[1] Univ Paris Saclay, Telecom ParisTech, CNRS, Lab Traitement & Commun Informat, Paris, France

[2] Univ Toronto, Ctr Quantum Informat & Quantum Control, Dept Phys, Toronto, ON, Canada

[3] Univ Toronto, Dept Elect & Comp Engn, Toronto, ON, Canada

[4] Oak Ridge Natl Lab, Computat Sci & Engn Div, Quantum Informat Sci Grp, Oak Ridge, TN USA

[5] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA

[6] Toshiba Res Europe Ltd, Cambridge, England

[7] Toshiba Co Ltd, Corp Res & Dev Ctr, Kawasaki, Kanagawa, Japan

来源：

NPJ QUANTUM INFORMATION | 2016年 / 2卷

基金：

加拿大自然科学与工程研究理事会;

关键词：

CONTINUOUS-VARIABLES; COHERENT STATES; HIGH-SPEED; CRYPTOGRAPHY; PHOTON; SECURITY; FIBER; COMMUNICATION; DISCRETE; SYSTEM;

D O I：

10.1038/npjqi.2016.25

中图分类号：

O4 [物理学];

学科分类号：

070305 [高分子化学与物理];

摘要：

Quantum key distribution (QKD) promises unconditional security in data communication and is currently being deployed in commercial applications. Nonetheless, before QKD can be widely adopted, it faces a number of important challenges such as secret key rate, distance, size, cost and practical security. Here, we survey those key challenges and the approaches that are currently being taken to address them.

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