Quantum Secure Communication Scheme with W State

作     者：WANG Jian ZHANG Quan TANG Chao-Jing 

作者机构：School of Electronic Science and Engineering National University of Defense Technology Changsha 410073 China 

出 版 物：《Communications in Theoretical Physics》 (理论物理通讯（英文版）)

年 卷 期：2007年第48卷第4X期

页      面：637-640页

核心收录：

学科分类：0809[工学-电子科学与技术（可授工学、理学学位）] 07[理学] 070205[理学-凝聚态物理] 08[工学] 0702[理学-物理学] 

基　　金：The project supported by National Natural Science Foundation of China under Grant No. 60472032 

主　　题：quantum secure communication W state 

摘      要：We present a quantum secure communication scheme using three-qubit W state. It is unnecessary for the present scheme to use alternative measurement or Bell basis measurement. Compared with the quantum secure direct communication scheme proposed by Cao et at. [H.J. Cao and H.S. Song, Chin. Phys. Lett. 23 （2006） 290], in our scheme, the detection probability for an eavesdropper＇s attack increases from 8.3% to 25%. We also show that our scheme is secure for a noise quantum channel.