3 citations · 3 across the 4 of their papers we have counts for
4 papers
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…
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,…
Impact of on-site potentials on -breathers in nonlinear chains
Lin Deng, Chengguan Fang, Hang Yu +5
On-site potentials are ubiquitous in physical systems and strongly influence their heat transport and energy localization. These potentials will inevitably affect the dynamical pro…
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…