Quantum Secure Direct Communication Based on Dense Coding and Detecting Eavesdropping with Four-Particle Genuine Entangled StateReportar como inadecuado




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1

School of Computer, Beijing University of Posts and Telecommunications, Beijing 100876, China

2

Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, China

3

Science and Technology on Communication Security Laboratory, Sichuan 610041, China





*

Author to whom correspondence should be addressed.



Academic Editors: Demosthenes Ellinas, Giorgio Kaniadakis, Jiannis Pachos and Antonio M. Scarfone

Abstract A novel quantum secure direct communication protocol based on four-particle genuine entangled state and quantum dense coding is proposed. In this protocol, the four-particle genuine entangled state is used to detect eavesdroppers, and quantum dense coding is used to encode the message. Finally, the security of the proposed protocol is discussed. During the security analysis, the method of entropy theory is introduced, and two detection strategies are compared quantitatively by comparing the relationship between the maximal information that the eavesdroppers Eve can obtain, and the probability of being detected. Through the analysis we can state that our scheme is feasible and secure. View Full-Text

Keywords: quantum secure direct communication; four-particle genuine entangled state; eavesdropping detection; quantum dense coding quantum secure direct communication; four-particle genuine entangled state; eavesdropping detection; quantum dense coding





Autor: Jian Li 1,2,3, Zeshi Pan 1,* , Fengqi Sun 1, Yanhua Chen 1, Zheng Wang 1 and Zuozhi Shi 1

Fuente: http://mdpi.com/



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