Complex Systems and Biological Physics Seminars

Nonlocal boxes

by Prof. Adán Cabello (University of Sevilla)

AlbaNova C4:3059 - Café Planck (AlbaNova Main Building)

AlbaNova C4:3059 - Café Planck

AlbaNova Main Building


(Fully) nonlocal boxes are those producing correlations that saturate the limit allowed by the no-signaling principle. Quantum mechanics prohibits them in the scenario with two parties, two settings, and two outcomes, or (2,2,2) scenario. In the first part of the talk, we will show why nonlocal boxes in (2,2,2) are impossible with ideal measurements of ideal observables. In the second part, we will present the simplest bipartite (fully) nonlocal boxes known.