Read full paper at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=52818#.VKn1x8nQrzE Author(s) Xunru Yin 1,2* Affiliation(s) 1 Department of Mathematics and Systems Science, Taishan University, Tai’an, China . 2 State Key Laboratory of Integrated Service Networks, Xidian University, Xi’an, China . ABSTRACT A kind of novel three-party quantum secure direct communication protocol is proposed with the correlation of two-particle entangled state. In this scheme the qubit transmission forms a closed loop and every one of the three participants is both a receiver and a sender of particle sequences in the bidirectional quantum channels. Each party implements the corresponding unitary operations accordi...
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