Quantum Secure Direct Communication with W State
Hai-Jing, SONG He-Shan
Department of Physics, Dalian University of Technology, Dalian 116024
Quantum Secure Direct Communication with W State
Hai-Jing;SONG He-Shan
Department of Physics, Dalian University of Technology, Dalian 116024
关键词 ：
03.67.Hk
Abstract ： A new theoretical scheme for quantum secure direct communication is proposed, where four-qubit symmetric W state functions as quantum channel. It is shown that two legitimate users can directly transmit the secret messages by using Bell-basis measurements and classical communication. The scheme is completely secure if the quantum channel is perfect. Even if the quantum channel is unsecured, it is still possible for two users to perform their secure communication. One bit secret message can be transmitted by sending a bit classical information.
Key words ：
03.67.Hk
出版日期: 2006-02-01
[1]
WANG Xin-Wen;LIU Xiang;WANG Zhi-Yong. Dense Coding with Multi-Atom Entanglement Channel in Cavity QED
[2]
LI Xi-Han;LI Chun-Yan;DENG Fu-Guo;;ZHOU Ping;LIANG Yu-Jie; ZHOU Hong-Yu;. Multiparty Quantum Remote Secret Conference
[3]
MAN Zhong-Xiao;XIA Yun-Jie. Improvement of Security of Three-Party Quantum Secure Direct Communication Based on GHZ States
[4]
CHEN Yan;MAN Zhong-Xiao;XIA Yun-Jie. Quantum Bidirectional Secure Direct Communication via Entanglement Swapping
[5]
WANG Jian;ZHANG Quan;TANG Chao-Jing. Multiparty Simultaneous Quantum Identity Authentication Based on Entanglement Swapping
[6]
LIU Wen-Yu;LI Ning;LIU Yu. Quantum Key Distribution Using High-Dimensional Quantum Error-Avoiding Code
[7]
ZHENG Xiao-Juan;FANG Mao-Fa;LIAO Xiang-Ping;CAI Jian-Wu. Teleportation for an Ionic Entangled Internal State by Entanglement Swapping
[8]
MAN Zhong-Xiao;XIA Yun-Jie. Efficient One-Sender Versus N-Receiver Quantum Secure Direct Communication
[9]
TAN Xiao-Hui;FANG Xi-Ming;WANG Guo-You. A Scheme for Connecting Quantum Components
[10]
YUAN Chun-Hua;OU Yong-Cheng;ZHANG Zhi-Ming;. A Scheme for Preparation of W-Type Entangled Coherent State of Three-Cavity Fields
[11]
MAN Zhong-Xiao;XIA Yun-Jie. Controlled Bidirectional Quantum Direct Communication by Using a GHZ State
[12]
WU Zhen-Zhen;FANG Mao-Fa. Remote Three-Atom Information Concentration without Bell-State Measurement
[13]
DENG Fu-Guo;;LI Xi-Han;LI Chun-Yan;ZHOU Ping;LIANG Yu-Jie;ZHOU Hong-Yu;. Multiparty Quantum Secret Report
[14]
SONG Jie;ZHANG Shou. Secure Quantum Secret Sharing Based on Reusable GHZ States as Secure Carriers
[15]
LI Xi-Han;ZHOU Ping;LIANG Yu-Jie;LI Chun-Yan;ZHOU Hong-Yu;;DENG Fu-Guo;. Quantum Secure Direct Communication Network with Two-Step Protocol
2006, Vol. 23 
