Nonlocality of Two-Qubit and Three-Qubit Schmidt-Correlated States  

作　　者：赵明镜 李宗国 李波 费少明 王志玺 李先清 

机构地区：[1]School of Mathematical Sciences,Capital Normal University [2]College of Science,Tianjin University of Technology [3]Max-Planck-Institute for Mathematics in the Sciences

出　　处：《Communications in Theoretical Physics》2011年第8期253-257,共5页理论物理通讯（英文版）

基　　金：Supported by National Natural Science Foundation of China under Grant Nos. 10875081, 10871227, KZ200810028013,PHR201007107;NSF of Beijing 1092008

摘　　要：We investigate the nonlocality of Schmidt-correlated （SC） states, and present analytical expressions of the maximum violation value of Bell inequalities. It is shown that the violation of Clauser-Horne-Shimony-Holt （CHSH） inequality is necessary and sufficient for the nonlocality of two-qubit SC states, whereas the violation of the Svetlichny inequaJity is only a sumcient condition for the genuine nonlocality of three-qubit SC states. Furthermore, the relations among the maximum violation values, concurrence, and relative entropy entanglement are discussed.

关 键 词：SEPARABILITY entanglement Bell inequality 

分 类 号：O413.1[理学—理论物理] TP38[理学—物理]