Deterministic Secure Direct Communication by Using Swapping Quantum Entanglement and Local Unitary Operations
MAN Zhong-Xiao1, ZHANG Zhan-Jun1,2, LI Yong3
1Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071
2School of Physics and Material Science, Anhui University, Hefei 230039
3Department of Physics, Centre China Normal University, Wuhan 430079
Deterministic Secure Direct Communication by Using Swapping Quantum Entanglement and Local Unitary Operations
MAN Zhong-Xiao1;ZHANG Zhan-Jun1,2;LI Yong3
1Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071
2School of Physics and Material Science, Anhui University, Hefei 230039
3Department of Physics, Centre China Normal University, Wuhan 430079
Abstract： A deterministic direct quantum communication protocol is proposed by using swapping quantum entanglement and local unitary operations. The present protocol is secure for the proof of the security of the present scheme, the same as that in the two-step protocol [Phys. Rev. A 68(2003)042317]. Additionally, the advantages and disadvantages of the present protocol is also discussed.
MAN Zhong-Xiao;ZHANG Zhan-Jun;LI Yong. Deterministic Secure Direct Communication by Using Swapping Quantum Entanglement and Local Unitary Operations[J]. 中国物理快报, 2005, 22(1): 18-21.
MAN Zhong-Xiao, ZHANG Zhan-Jun, LI Yong. Deterministic Secure Direct Communication by Using Swapping Quantum Entanglement and Local Unitary Operations. Chin. Phys. Lett., 2005, 22(1): 18-21.
2005, Vol. 22 
