Nucleation of breathers via stochastic resonance in nonlinear lattices
Pattern Formation and Solitons
2010-05-20 v2
Abstract
By applying a staggered driving force in a prototypical discrete model with a quartic nonlinearity, we demonstrate the spontaneous formation and destruction of discrete breathers with a selected frequency due to thermal fluctuations. The phenomenon exhibits the striking features of stochastic resonance (SR): a nonmonotonic behavior as noise is increased and breather generation under subthreshold conditions. The corresponding peak is associated with a matching between the external driving frequency and the breather frequency at the average energy given by ambient temperature.
Keywords
Cite
@article{arxiv.0902.0165,
title = {Nucleation of breathers via stochastic resonance in nonlinear lattices},
author = {David Cubero and Jesus Cuevas and P. G. Kevrekidis},
journal= {arXiv preprint arXiv:0902.0165},
year = {2010}
}
Comments
Added references, figure 5 modified to include new data