Post-quantum nonlocality in the minimal triangle scenario
Quantum Physics
2023-11-23 v3
Abstract
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.
Cite
@article{arxiv.2305.03745,
title = {Post-quantum nonlocality in the minimal triangle scenario},
author = {Alejandro Pozas-Kerstjens and Antoine Girardin and Tamás Kriváchy and Armin Tavakoli and Nicolas Gisin},
journal= {arXiv preprint arXiv:2305.03745},
year = {2023}
}
Comments
7 pages, 5+1 figures, RevTeX 4.2. The computational appendix is available at https://www.github.com/apozas/minimal-triangle V3: Updated to match published version