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nlin.CD2026
Lyapunov spectrum scaling transition for quasiperiodic nonlinear unitaries
Xiaodong Zhang, Barbara Dietz, Sergej Flach
We study the Lyapunov spectrum scaling of thermal weakly-nonlinear unitary maps in the presence of quasiperiodic potentials. We search for the crossover from long-range to short-ra…
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…