Quantum secure communication using continuous variable Einstein-Podolsky-Rosen correlations

被引：63

作者：

He, GQ ^{[1
]}

Zhu, J ^{[1
]}

Zeng, GH ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, Dept Elect Engn, State Key Lab Adv Opt Commun Syst & Networks, Shanghai 200030, Peoples R China

来源：

PHYSICAL REVIEW A | 2006年 / 73卷 / 01期

关键词：

D O I：

10.1103/PhysRevA.73.012314

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A quantum secure communication protocol using correlations of continuous variable Einstein-Podolsky-Rosen (EPR) pairs is proposed. The proposed protocol may implement both quantum key distribution and quantum message encryption by using a nondegenerate optical parametric amplifier (NOPA). The general Gaussian-cloner attack strategy is investigated in detail by employing Shannon information theory. Results show that the proposed scheme is secure, which is guaranteed physically by the correlations of the continuous variable EPR entanglement pairs generated by the NOPA.

引用

页数：7

共 22 条

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