Author

Sandro Meloni

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Preprint Oct 2026

Directed percolation in higher-order social dilemmas

Multiplayer social dilemmas on hypergraphs show a variety of emergent phenomena, which has been attributed to group interactions. Here we test whether pairwise dynamics can reproduce them as well. We derive the mesoscopic Langevin equation of a testbed model and find the operator content of absorbing phase transitions:...

Pablo Villegas, Sandro Meloni · 0 citations

Preprint Sep 2026

Is higher-order physics different?

Group interactions are widespread, and higher-order extensions of familiar models display collective phenomena absent from their pairwise baselines, which are routinely offered as evidence of a distinct higher-order physics. We ask whether that claim survives the test that gives new a precise meaning in statistical phy...

Pablo Villegas, Sandro Meloni · 1 citation