High-efficient quantum key distribution based on hybrid entanglement

被引：12

作者：

Sun, Ying ^{[1
,2
]}

Wen, Qiao-Yan ^{[1
]}

Yuan, Zheng ^{[2
]}

机构：

[1] Beijing Univ Posts & Telecommun, State Key Lab Networking & Switching Technol, Beijing 100876, Peoples R China

[2] Beijing Elect Sci & Technol Inst, Beijing 100070, Peoples R China

来源：

OPTICS COMMUNICATIONS | 2011年 / 284卷 / 01期

基金：

北京市自然科学基金; 中国国家自然科学基金;

关键词：

Path-spin entangled state; Hybrid entanglement; Quantum key distribution; Quantum cryptography; BELL STATES; CRYPTOGRAPHY; COMMUNICATION; INEQUALITY; SECURITY; PARTICLE; PHOTONS;

D O I：

10.1016/j.optcom.2010.08.061

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A novel quantum key distribution scheme based on the path-spin hybrid entanglement is proposed and analyzed. In this proposed scheme, the entanglement between the path and the spin degrees of freedom is confined locally with the single particle and transmitted in one-way direction. Two split pulses of a single spin-1/2 particle are not simultaneously transmitted through the public quantum channels for the security goal. The scheme is robust against any individual attack even in noisy environments. Moreover, it also has high-efficiency since one single particle can be used to generate one bit key on average. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：527 / 530

页数：4

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