Multiparty Quantum Secret Sharing via Introducing Auxiliary Particles Using a Pure Entangled State  

作　　者：XIA Yan SONG Jie SONG He-Shan HUANG Xiao-Li HUANG Xiao-Li 

机构地区：[1]School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024, China

出　　处：《Communications in Theoretical Physics》2008年第6期1468-1472,共5页理论物理通讯（英文版）

基　　金：National Natural Science Foundation of China under Grant No.10575017

摘　　要：We propose a new multiparty quantum secret sharing protocol via introducing auxiliary particles using a non-maximally entangled （pure） two-particle state without a Bell measurement. The communication parties utilize decoy particles tO check eavesdropping. After ensuring the security of the quantum channel, the sender encodes the secret message and transmits it to the receiver by using controlled-NOT operation and von Neumann measurement. If and only if all the agents agree to collaborate, they can read out the secret message.

关 键 词：multiparty quantum secret sharing auxiliary particle controlled-NOT operation non-maximally entangled two-particle state 

分 类 号：O413[理学—理论物理]