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cond-mat.stat-mech2025★ 3 cited
Prethermalization in Fermi-Pasta-Ulam-Tsingou chains
Gabriel M. Lando, Sergej Flach
The observation of the Fermi-Pasta-Ulam-Tsingou (FPUT) paradox, namely the lack of equipartition in the evolution of a normal mode in a nonlinear chain on unexpectedly long times,…
nlin.CD2025
Observation of prethermalization in weakly nonintegrable unitary maps
Xiaodong Zhang, Gabriel M. Lando, Barbara Dietz +1
We investigate prethermalization by studying the statistical properties of the time-dependent largest Lyapunov exponent for unitary-circuit maps upon approaching integrabili…