Bell Inequalities Classifying Bi-separable Three-qubit States
نویسندگان
چکیده
Bao-Zhi Sun and Shao-Ming Fei a Department of Mathematics, QuFu Normal University, Shandong 273165 b Department of Mathematics, Capital Normal University, Beijing 100037 c Institut für Angewandte Mathematik, Universität Bonn, D-53115 Abstract We present a set of Bell inequalities that gives rise to a finer classification of the entanglement for tripartite systems. These inequalities distinguish three possible bi-separable entanglements for three-qubit states. The three Bell operators we employed constitute an external sphere of the separable cube.
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