Bell inequalities classifying biseparable three-qubit states

Bao-Zhi Sun, Shao-Ming Fei
2006 Physical Review A. Atomic, Molecular, and Optical Physics  
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.
doi:10.1103/physreva.74.032335 fatcat:tzbytv4f55dx3hcw5yoafokumu