- Conference date: 7-9 September 2005
- Location: Trieste (Italy) and Losinj (Croatia)
One of the most intriguing features of quantum physics is the non‐locality of correlations that can be obtained by measuring entangled particles. Recently, it has been noticed that non‐locality can be studied without reference to the Hilbert space formalism. I review here the properties of the basic mathematical tool used for such studies, the so called Popescu‐Rohrlich‐box, in short PR‐box. Among its feats, are the simulation of the correlations of the singlet and of other non‐local probability distributions. Among its features, the “anomaly of non‐locality” and a great power for information‐theoretical tasks. Among its failures, the impossibility of reproducing all multi‐partite distributions and the triviality of the allowed dynamics.
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