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Post-quantum nonlocality in the minimal triangle scenario
Alejandro Pozas-Kerstjens, Antoine Girardin, Tamás Kriváchy, Armin Tavakoli, Nicolas Gisin
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We investigate network nonlocality in the triangle scenario when all three parties have no input and binary outputs. Through an explicit example, we prove that this minimal scenario supports nonlocal correlations compatible with no-signaling and independence of the three sources, but not with realisations based on independent quantum or classical sources. This nonlocality is robust to noise. Moreover, we identify the equivalent to a Popescu-Rohrlich box in the minimal triangle scenario.
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