Quantum secure direct communication with χ-type entangled states

被引：232

作者：

Lin, Song ^{[1
,2
]}

Wen, Qiao-Yan ^{[1
]}

Gao, Fei ^{[1
]}

Zhu, Fu-Chen ^{[3
]}

机构：

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

[2] Fujian Normal Univ, Sch Math & Comp Sci, Fuzhou 350007, Peoples R China

[3] Natl Lab Modern Commun, Chengdu 610041, Peoples R China

来源：

PHYSICAL REVIEW A | 2008年 / 78卷 / 06期

关键词：

cryptographic protocols; quantum cryptography; quantum entanglement;

D O I：

10.1103/PhysRevA.78.064304

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In this paper, a quantum secure direct communication protocol with chi-type entangled states parallel to chi(00)>(3214) is proposed. We analyze the security of this protocol and prove that it is secure in ideal conditions. Then, an alternative way is presented to ensure the security of this protocol in a noisy channel. Moreover, this protocol utilizes quantum superdense coding to achieve a high intrinsic efficiency and source capacity. The practical implementation of this protocol is also discussed.

引用

页数：4

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