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Two-step quantum direct communication protocol using the Einstein-Podolsky-Rosen pair block
Deng, FG; Long, GL; Liu, XS; Deng, FG , Tsing Hua Univ, Dept Phys, Beijing 100084, Peoples R China.
2003
发表期刊PHYSICAL REVIEW A
ISSN1050-2947
卷号68期号:4页码:-
摘要A protocol for quantum secure direct communication using blocks of Einstein-Podolsky-Rosen (EPR) pairs is proposed. A set of ordered N EPR pairs is used as a data block for sending secret message directly. The ordered N EPR set is divided into two particle sequences, a checking sequence and a message-coding sequence. After transmitting the checking sequence, the two parties of communication check eavesdropping by measuring a fraction of particles randomly chosen, with random choice of two sets of measuring bases. After insuring the security of the quantum channel, the sender Alice encodes the secret message directly on the message-coding sequence and sends them to Bob. By combining the checking and message-coding sequences together, Bob is able to read out the encoded messages directly. The scheme is secure because an eavesdropper cannot get both sequences simultaneously. We also discuss issues in a noisy channel.
部门归属Tsing Hua Univ, Dept Phys, Beijing 100084, Peoples R China; Key Lab Quantum Informat & Measurements, Beijing 100084, Peoples R China; Tsing Hua Univ, Ctr Atom & Mol NanoSci, Beijing 100084, Peoples R China; Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
关键词Error-correcting Codes Key Distribution Bell Theorem Cryptography States Information Particle Storage Photons Scheme
学科领域Physics
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收录类别SCI
WOS记录号WOS:000187004700036
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被引频次:981[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/13215
专题1978-2010年知识产出
通讯作者Deng, FG , Tsing Hua Univ, Dept Phys, Beijing 100084, Peoples R China.
推荐引用方式
GB/T 7714
Deng, FG,Long, GL,Liu, XS,et al. Two-step quantum direct communication protocol using the Einstein-Podolsky-Rosen pair block[J]. PHYSICAL REVIEW A,2003,68(4):-.
APA Deng, FG,Long, GL,Liu, XS,&Deng, FG , Tsing Hua Univ, Dept Phys, Beijing 100084, Peoples R China..(2003).Two-step quantum direct communication protocol using the Einstein-Podolsky-Rosen pair block.PHYSICAL REVIEW A,68(4),-.
MLA Deng, FG,et al."Two-step quantum direct communication protocol using the Einstein-Podolsky-Rosen pair block".PHYSICAL REVIEW A 68.4(2003):-.
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