51 citations · 151 across the 9 of their papers we have counts for
6 papers · 1 filter
Tristability in the pendula chain
Ramaz Khomeriki, Jerome Leon
Experiments on a chain of coupled pendula driven periodically at one end demonstrate the existence of a novel regime which produces an output frequency at an odd fraction of the dr…
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…
Bistability in sine-Gordon: the ideal switch
Ramaz Khomeriki, Jerome Leon
The sine-Gordon equation, used as the representative nonlinear wave equation, presents a bistable behavior resulting from nonlinearity and generating hysteresis properties. We show…
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,…