Physics Essays

Why superquantum, no-signaling correlations cannot exist

Pierre Uzan

Published Jun 15, 2020• 1 citation

Abstract

The idea that nonlocal correlations stronger than quantum correlations between two no-signaling systems could “theoretically” exist is based on an incorrect statistical interpretation of the no-signaling condition. This article shows that any physically realizable no-signaling “box” involving local incompatible observables indeed requires to be described in a noncommutative, quantum-like language of operators, which leads to the derivation of the Tsirelson bound and then contradicts this idea.

DOI: 10.4006/0836-1398-33.2.140

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