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F. G. Deng, G. L. Long and X. S. Liu, “Two-Step Quantum Direct Communication Protocol Using the Einstein- Podolsky-Rosen Pair Block,” Physics Review A, Vol. 68, No. 4, 2003, Article ID: 042317. doi:10.1103/PhysRevA.68.042317

has been cited by the following article:

• TITLE: Efficient Three-Party Quantum Secure Direct Communication with EPR Pairs

  AUTHORS: Xunru Yin, Wenping Ma, Dongsu Shen, Chaoyang Hao

  KEYWORDS: Quantum Secure Direct Communication; Quantum Dense Coding; Protocol Efficiency

  JOURNAL NAME: Journal of Quantum Information Science, Vol.3 No.1, March 29, 2013

  ABSTRACT: In order to get rid of the drawback of information leakage which existed in Chong et al.’s protocol (Opt. Commun., 284, 2011, 515-518), an efficient three-party quantum secure direct communication (3P-QSDC) based on some ideas of quantum dense coding with EPR pairs is proposed, in which each entangled pair can be used to exchange a longer length of secret message between three legal users. By improving the classical channels and the qubit transmissions, our scheme can avoid this kind of drawback. Thus the secret messages are not leaked out to other people from the public information. Moreover, compared with Chong et al.’s protocol, our protocol can achieve higher efficiency.