We present a Theorem that all generalized Greenberger-Horne-Zeilinger states of a three-qubit system violate a Bell inequality in terms of probabilities. All pure entangled states of a three-qubit system are shown to violate a Bell inequality for probabilities; thus, one has Gisin's theorem for three qubits.
@article{arxiv.quant-ph/0311180,
title = {Gisin's Theorem for Three Qubits},
author = {Jing-Ling Chen and Chunfeng Wu and L. C. Kwek and C. H. Oh},
journal= {arXiv preprint arXiv:quant-ph/0311180},
year = {2009}
}
Comments
5 pages, 2 figures. v2: journal-ref is added and some corrections are made