%0 Journal Article
%T Quantum key distribution using four-level particles<br>
%A Tao Yan
%A FengLi Yan
%A <br>
%J 科学通报(英文版)
%D 2011
%I 
%X We present a quantum key distribution protocol based on four-level particle entanglement. Furthermore, a controlled quantum key distribution protocol is proposed using three four-level particles. We show that the two protocols are secure.
%K quantum key distribution
%K four-level particles
%K entanglement<br>
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=01BA20E8BA813E1908F3698710BBFEFEE816345F465FEBA5&cid=96E6E851B5104576C2DD9FC1FBCB69EF&jid=DD6615BC9D2CFCE0B6F945E8D5314523&aid=6849DD77491138C1CAB5AF86FDC75EF9&yid=9377ED8094509821&vid=014B591DF029732F&iid=CA4FD0336C81A37A&sid=B91E8C6D6FE990DB&eid=D3E34374A0D77D7F&journal_id=1001-6538&journal_name=科学通报(英文版)&referenced_num=0&reference_num=25