%0 Journal Article
%T Optimum parameters for biased two-state quantum key distribution protocol<br>非对称二状态量子密钥分配协议最优参量研究
%A Zhang Quan
%A Zhang Er-Yang
%A <br>张权
%A 张尔扬
%J 物理学报
%D 2002
%I 
%X By analyzing the efficiency and security of B92 quantum key distribution (QKD) protocol,we concluded that efficiency can be greatly improved using biased state source without loss of security.We studied the constraint relations between parameters and performance of the biased B92 schem.The optimum parameters for a variety of scenarios were presented.Meanwhile,the efficiency and security for these scenarios were compared with each other in detail.In conclusion,we have obtained a globally optimal biased B92 QKD scheme whose performance outgo the standard B92.
%K biased two
%K state quantum key distribution protocol
%K optimum parameter
%K quantum cryptography
%K quantum information<br>非对称二状态量子密钥分配协议
%K 最优参量
%K 量子密码术
%K 量子信息
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=587D1692A4551639&yid=C3ACC247184A22C1&vid=987EDA49D8A7A635&iid=5D311CA918CA9A03&sid=FE397BCF5D340F6F&eid=4858DFA42406A0F9&journal_id=1000-3290&journal_name=物理学报&referenced_num=5&reference_num=11