%0 Journal Article
%T Efficient quantum secure communication with a publicly known key<br>
%A Li Chun-Yan
%A Li Xi-Han
%A Deng Fu-Guo
%A Zhou Hong-Yu
%A <br>
%J 中国物理 B
%D 2008
%I 
%X This paper presents a simple way for an eavesdropper to eavesdrop freely the secret message in the experimental realization of quantum communication protocol proposed by Beige {\em et al} (2002 \emph{Acta Phys. Pol.} A \textbf{101} 357). Moreover, it introduces an efficient quantum secure communication protocol based on a publicly known key with decoy photons and two biased bases by modifying the original protocol. The total efficiency of this new protocol is double that of the original one. With a low noise quantum channel, this protocol can be used for transmitting a secret message. At present, this protocol is good for generating a private key efficiently.
%K quantum communication
%K quantum cryptography<br>
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=CD8D6A6897B9334F09D8D1648C376FB4&aid=021AA04511F29D635DB07BA637E11D4F&yid=67289AFF6305E306&vid=BCA2697F357F2001&iid=DF92D298D3FF1E6E&sid=9FFFA3A269242559&eid=0EA9E55E39F0369F&journal_id=1009-1963&journal_name=中国物理&referenced_num=0&reference_num=0