%0 Journal Article
%T Efficient Multiparty-to-Multiparty Quantum Secret Sharing via Continuous Variable Operations
%A HAN Lian-Fang
%A LIU Yi-Min
%A YUAN Hao
%A ZHANG Zhan-Jun
%A <br>韩莲芳
%A 刘益民
%A 袁浩
%A 张战军
%J 中国物理快报
%D 2007
%I 
%X sharing scheme Phys. Rev. A 71(2005)044301] proposed recently is extended to a multiparty-to-multiparty case. Furthermore, the continuous variable operations are employed in the extended scheme to replace the specific discrete unitary operations used in the original scheme. The complete randomicity of the continuous variable characterizing the unitary operations can ensure the security of secret sharing. Moreover, the present scheme is compared with the recent similar scheme Phys. Rev. A 72(2005)012304]. It is found that the efficiency of the present scheme is n times of that of the previous one.
%K 03
%K 67
%K Hk
%K 03
%K 67
%K Dd<br>量子理论
%K 多量子
%K 机密共享
%K 连续变量
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=E27DA92E19FE279A273627875A70D74D&aid=57A8948FA032180C4C70EF3F8623851C&yid=A732AF04DDA03BB3&vid=B91E8C6D6FE990DB&iid=59906B3B2830C2C5&sid=1FEE6794F94BB03B&eid=900988A34B6B1032&journal_id=0256-307X&journal_name=中国物理快报&referenced_num=0&reference_num=33