Quantum Secure Direct Communication with Five-Qubit Entangled State

作     者：LIN Song GAO Fei LIU Xiao-Fen 林崧;高飞;刘晓芬

作者机构：School of Mathematics and Computer ScienceFujian Normal UniversityFuzhou 350007 Key Lab of Network Security and CryptographyFujian Normal UniversityFuzhou 350007 State Key Laboratory of Networking and Switching TechnologyBeijing University of Posts and TelecommunicationsBeijing 100876 

出 版 物：《Chinese Physics Letters》 (中国物理快报（英文版）)

年 卷 期：2011年第28卷第3期

页      面：17-20页

核心收录：

学科分类：07[理学] 070201[理学-理论物理] 0702[理学-物理学] 

基　　金：Supported by the National Natural Science Foundation of China under Grant Nos 60873191,60903152 and 61003286 the Specialized Research Fund for the Doctoral Program of Higher Education(SRFDP)under Grant Nos 200800131016 and 20090005110010,Beijing Nova Program(No 2008B51) Fujian Province Natural Science Foundation(No 2010J05128),a Key Project of Fujian Provincial Universities–Information Technology Research Based on Mathematics 

主　　题：conditions capacity quantum 

摘      要：Recently,a genuine five-qubit entangled state has been achieved by Brown et al.[***.A 38(2005)1119].Later it was indicated that this state can be used for quantum teleportation and quantum state *** we build a quantum secure direct communication protocol with this state,and prove that it is secure in ideal *** the protocol,the sender performs unitary transformations to encode a secret message on his/her particles and sends them to the *** receiver then performs projective determinate measurement to decode the secret message ***,this protocol utilizes superdense coding to achieve a high intrinsic efficiency and source capacity.