Pozas-Kerstjens, A., Girardin, A., Krivachy, T. M., Tavakoli, A., & Gisin, N. (2023). Post-quantum nonlocality in the minimal triangle scenario. New Journal of Physics, 25(11), Article 113037. https://doi.org/10.1088/1367-2630/ad0a16
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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Project (external):
Spanish Ministry of Science and Innovation MCIN/AEI/10.13039/501100011033 Spanish Ministry of Science and Innovation MCIN/AEI/10.13039/501100011033 Spanish Ministry of Economic Affairs and Digital Transformation Universidad Complutense de Madrid Swiss National Science Foundation Swiss National Science Foundation Austrian Federal Ministry of Education via the Austrian Research Promotion Agency–FFG Wenner-Gren Foundation Knut and Alice Wallenberg Foundation