Quantum Encryption Protocol Based on Continuous Variable EPR Correlations
HE Guang-Qiang;ZENG Gui-Hua
【期刊名称】《理论物理通讯（英文版）》 【年(卷),期】2006(046)007
【摘要】A quantum encryption protocol based on Gaussian-modulated continuous variable EPR correlations is proposed. The security is guaranteed by continuous variable EPR entanglement correlations produced by nondegenerate optical parametric amplifier (NOPA). For general beam splitter eavesdropping strategy, the mutual information Ⅰ(α, ε)between Alice and Eve is calculated by employing Shannon information theory. Finally the security analysis is presented. 【总页数】4页(61-64) 【关键词】quantum correlations;NOPA
【作者】HE Guang-Qiang;ZENG Gui-Hua
【作者单位】The State Key Laboratory of Fibre-Optic Local Area Networks and Advanced Optical Communication Systems, Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai 200030, China;The State Key Laboratory of Fibre-Optic Local Area Networks and Advanced Optical Communication Systems, Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai
cryptography;quantum
encryption;EPR
200030, China 【正文语种】中文 【中图分类】O4 【相关文献】
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Quantum Encryption Protocol Based on Continuous Variable EPR Correlations
