Diederik Aerts, Sandro Sozzo
We develop a general framework for a structural description of the entanglement present in composite entities experimentally violating Bell's inequalities. Our formalism enables quantum modeling in complex Hilbert space for different types of situations, namely, situations where entangled states and product measurements appear ('standard quantum modeling'), and situations where both states and measurements are entangled ('nonlocal box modeling', 'nonlocal non-marginal box modeling'). The role played by Tsirelson's bound and marginal distribution law is emphasized. Specific quantum models are worked out in detail in complex Hilbert space within the present framework.
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http://arxiv.org/abs/1304.0100
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