Wednesday, July 3, 2013

1307.0145 (Tobias Fritz et al.)

Probabilistic models on contextuality scenarios    [PDF]

Tobias Fritz, Anthony Leverrier, Ana Belén Sainz
We introduce a framework to describe probabilistic models in Bell experiments, and more generally in contextuality scenarios. Such a scenario is a hypergraph whose vertices represent elementary events and hyperedges correspond to measurements. A probabilistic model on such a scenario associates to each event a probability, in such a way that events in a given measurement have a total probability equal to one. We discuss the advantages of this framework, like the unification of the notions of contexuality and nonlocality, and give a short overview of the results obtained in arXiv:1212.4084.
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