System size stochastic resonance in driven finite arrays of coupled bistable elements
Física Teórica, Facultad de Física,
Universidad de Sevilla, Apartado de Correos 1065, 41080 Sevilla, Spain
Corresponding author: firstname.lastname@example.org
Revised: 1 February 2010
Published online: 9 March 2010
The global response to weak time periodic forces of an array of noisy, coupled nonlinear systems might show a nonmonotonic dependence on the number of units in the array. This effect has been termed system size stochastic resonance by other authors. In this paper, we focus on a collective variable of a finite array of one-dimensional globally coupled bistable elements. We analyze the possible nonmonotonic dependence on the system size of its power spectral amplification and its signal-to-noise ratio.
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2010