Journal or Book Title
PHYSICAL REVIEW LETTERS
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: 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.
Cubero, D; Cuevas, J; and Kevrekidis, PG, "Nucleation of Breathers via Stochastic Resonance in Nonlinear Lattices" (2009). Mathematics and Statistics Department Faculty Publication Series. 51.