46 citations · 265 across the 15 of their papers we have counts for
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Breathers and Thermal Relaxation in Fermi-Pasta-Ulam Arrays
Ramon Reigada, Antonio Sarmiento, Katja Lindenberg
Breather stability and longevity in thermally relaxing nonlinear arrays depend sensitively on their interactions with other excitations. We review the relaxation of breathers in Fe…
Asymptotic Dynamics of Breathers in Fermi-Pasta-Ulam Chains
R. Reigada, A. Sarmiento, Katja Lindenberg
We study the asymptotic dynamics of breathers in finite Fermi-Pasta-Ulam chains at zero and non-zero temperatures. While such breathers are essentially stationary and very long-liv…
Energy Relaxation in Fermi-Pasta-Ulam Arrays
R. Reigada, A. Sarmiento, Katja Lindenberg
The dynamics of energy relaxation in thermalized one- and two-dimensional arrays with nonlinear interactions depend in detail on the interactions and, in some cases, on dimensional…
Energy Relaxation in Nonlinear One-Dimensional Lattices
R. Reigada, A. Sarmiento, Katja Lindenberg
We study energy relaxation in thermalized one-dimensional nonlinear arrays of the Fermi-Pasta-Ulam type. The ends of the thermalized systems are placed in contact with a zero-tempe…
Thermal Resonance in Signal Transmission
R. Reigada, A. Sarmiento, K. Lindenberg
We use temperature tuning to control signal propagation in simple one-dimensional arrays of masses connected by hard anharmonic springs and with no local potentials. In our numeric…
Harvesting Thermal Fluctuations: Activation Process Induced by a Nonlinear Chain in Thermal Equilibrium
R. Reigada, A. Sarmiento, A. H. Romero +2
We present a model in which the immediate environment of a bistable system is a molecular chain which in turn is connected to a thermal environment of the Langevin form. The molecu…