%0 Journal Article
%T Concurrence of the mixed state of two non-orthogonal pure states<br>二非正交纯态相混合的concurrence
%A Di Yao-Min
%A Hu Bao-Lin
%A Liu Dong-Dong
%A Yan Shi-Ming
%A <br>狄尧民
%A 胡宝林
%A 刘冬冬
%A 颜士明
%J 物理学报
%D 2006
%I 
%X In this article an obvious expression of concurrence of the mixed state of two non-orthogonal pure states in two qubits is derived. The result reveals that the expression of concurrence of the mixed state of two orthogonal states can be directly generalized to the case of the mixed state of two non-orthogonal states. Then the maximally entangled states mixed by two pure states and the concurrences in some important special cases are discussed.
%K concurrence<br>量子纠缠
%K 纯态
%K 混合态
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=B67CD73903D3CBC0&yid=37904DC365DD7266&vid=E514EE58E0E50ECF&iid=5D311CA918CA9A03&sid=47BF3EA89373F2AF&eid=83BEAC52E8ED5656&journal_id=1000-3290&journal_name=物理学报&referenced_num=5&reference_num=9