Mordecai Waegell, P. K. Aravind
GHZ paradoxes are presented for all even numbers of qubits from four up. They are obtained from proofs of the Kochen-Specker (KS) theorem by showing how the assumption of noncontextuality can be justified on the basis of locality. A number of different paradoxes are presented and the nature of the entangled states involved in them is discussed. Some multiqubit proofs of the KS theorem are also presented in the form of easily understood diagrams. The implications of our results are discussed.
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http://arxiv.org/abs/1208.5741
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