Violation of the Finner inequality in the four-output triangle network
Violation of the Finner inequality in the four-output triangle network
Network nonlocality allows one to demonstrate nonclassicality in networks with fixed joint measurements, that is, without random measurement settings. The simplest network in a loop, the triangle, with four outputs per party is especially intriguing. The ``elegant distribution'' [Gisin, Entropy 21, 325 (2019)] still resists analytic proofs, despite its many …