Chaos (Woodbury, N.Y.)
Measuring FPUT thermalization with Toda integrals.
H Christodoulidi, S Flach
Published: 202510.1063/5.0285451
Abstract
We assess the ergodic properties of the Fermi-Pasta-Ulam-Tsingou-α model for generic initial conditions using a Toda integral. It serves as an adiabatic invariant for the system and a suitable observable to measure its equilibrium time. Over this tim…
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