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Characterization of entanglement of more than two qubits with Bell inequalities and global entanglement

J. Endrejat·H. Buettner
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Abstract

It is shown that the entanglement-structure of 3- and 4-qubit states can be characterized by optimized operators of the Mermin-Klyshko type. It is possible to discriminate between pure 2-qubit entanglements and higher entanglements. A comparison with a global entanglement measure and the i-concurrence is made.

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J. Endrejat, H. Buettner. 2004-08-16. Characterization of entanglement of more than two qubits with Bell inequalities and global entanglement. https://doi.org/10.1103/physreva.71.012305

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