300 citations · 4.6k across the 133 of their papers we have counts for
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Traveling Solitons in Long-Range Oscillator Chains
George Miloshevich, Jean Pierre Nguenang, Thierry Dauxois +2
We investigate the existence and propagation of solitons in a long-range extension of the quartic Fermi-Pasta-Ulam (FPU) chain of anharmonic oscillators. The coupling in the linear…
Stochastic Resonance in the Fermi-Pasta-Ulam Chain
George Miloshevich, Ramaz Khomeriki, Stefano Ruffo
We consider a damped -Fermi-Pasta-Ulam chain, driven at one boundary subjected to stochastic noise. It is shown that, for a fixed driving amplitude and frequency, increasing the…
Nonlinear Dynamics in Double Square Well Potential
Ramaz Khomeriki, Jerome Leon, Stefano Ruffo +1
Considering the coherent nonlinear dynamics in double square well potential we find the example of coexistence of Josephson oscillations with a self-trapping regime. This macroscop…
Coexistence of Josephson oscillations and novel self-trapping regime in optical waveguide arrays
Ramaz Khomeriki, Jerome Leon, Stefano Ruffo
Considering the coherent nonlinear dynamics between two weakly linked optical waveguide arrays, we find the first example of coexistence of Josephson oscillations with a novel self…
The Fermi-Pasta-Ulam "numerical experiment": history and pedagogical perspectives
Thierry Dauxois, Michel Peyrard, Stefano Ruffo
The Fermi-Pasta-Ulam (FPU) pioneering numerical experiment played a major role in the history of computer simulation because it introduced this concept for the first time. Moreover…
The Anti-FPU Problem
Thierry Dauxois, Ramaz Khomeriki, Francesco Piazza +1
We present a detailed analysis of the modulational instability of the zone-boundary mode for one and higher-dimensional Fermi-Pasta-Ulam (FPU) lattices. Following this instability,…