%0 Journal Article
%T Efficient quantum secret sharing scheme with two-particle entangled states<br>
%A Zhu Zhen-Chao
%A Zhang Yu-Qing
%A Fu An-Min
%A <br>
%J 中国物理 B
%D 2011
%I 
%X This paper proposes a protocol for multi-party quantum secret sharing utilizing four non-orthogonal two-particle entangled states following some ideas in the schemes proposed by Liu et al. (2006 Chin. Phys. Lett. 23 3148) and Zhang et al. (2009 Chin. Phys. B 18 2149) respectively. The theoretical efficiency for qubits of the new protocol is improved from 50% to approaching 100%. All the entangled states can be used for generating the private key except those used for the eavesdropping check. The validity of a probable attack called opaque cheat attack to this kind of protocols is considered in the paper for the first time.
%K quantum secret sharing
%K quantum entanglement
%K Bell state nonorthogonal base<br>
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=CD8D6A6897B9334F09D8D1648C376FB4&aid=280C33288E984F32744DB880C6108007&yid=9377ED8094509821&vid=A04140E723CB732E&iid=E158A972A605785F&journal_id=1009-1963&journal_name=中国物理&referenced_num=0&reference_num=43