Experimental setup for obtaining correlations which cannot be explained by any causal theory limited to tripartite nonclassical common causes assisted with unlimited shared randomness (subject to the postselection and other loopholes).

From the article:

Experimental Demonstration that No Tripartite-Nonlocal Causal Theory Explains Nature’s Correlations
Huan Cao, Marc-Olivier Renou, Chao Zhang, Gaël Massé, Xavier Coiteux-Roy, Bi-Heng Liu, Yun-Feng Huang, Chuan-Feng Li, Guang-Can Guo, and Elie Wolfe
Phys. Rev. Lett. 129, 150402 (2022)

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