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Super-Quantum, Non-Signaling Correlations Cannot Exist

Research paper by Pierre Uzan

Indexed on: 28 May '16Published on: 28 May '16Published in: Quantum Physics



Abstract

Non-local correlations stronger than quantum correlations between two non-signaling systems cannot exist. The reason is that any physically realizable PR-box that would give rise to such correlations requires to be described in a non-commutative, quantum-like language -which leads to the derivation of the Tsirelson bound. A paradigmatic toy-model of such super-quantum correlations is then considered and it is shown that it suffers from logical inconsistency.