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cooling dynamics 1energy scaling 1fermi-pasta-ulam 1nonequilibrium 1numerical simulation 1stochastic threshold 1

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cond-mat.stat-mech2026

Cooling rate and glassy behavior in the Fermi--Pasta--Ulam system

Matteo Razza, Andrea Carati, Luigi Galgani

The authors numerically study how a Fermi‑Pasta‑Ulam chain cools when coupled to a gas whose temperature is lowered at a given rate, discovering that below a weak stochastic thresh…