Two-step quantum direct communication protocol using the Einstein-Podolsky-Rosen pair block

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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.
刊名	PHYSICAL REVIEW A
	2003
卷号	68 期号:4 页码:-
关键词	Error-correcting Codes Key Distribution Bell Theorem Cryptography States Information Particle Storage Photons Scheme
ISSN号	1050-2947
英文摘要	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.
学科主题	Physics
URL标识	查看原文
WOS记录号	WOS:000187004700036
公开日期	2012-08-29
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/13215]
专题	理论物理研究所_理论物理所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):-.