System Size Stochastic Resonance: General Nonequilibrium Potential Framework

Details System Size Stochastic Resonance: General Nonequilibrium Potential Framework System Size Stochastic Resonance: General Nonequilibrium Potential Framework

2005-04-06

arxiv.org/abs/cond-mat/0504131v1

Physics

Condensed Matter

Statistical Mechanics

LaTex, 24 pages and 9 figures, submitted to Phys. Rev. E

Scientific paper

10.1103/PhysRevE.72.021101

We study the phenomenon of system size stochastic resonance within the nonequilibrium potential's framework. We analyze three different cases of spatially extended systems, exploiting the knowledge of their nonequilibrium potential, showing that through the analysis of that potential we can obtain a clear physical interpretation of this phenomenon in wide classes of extended systems. Depending on the characteristics of the system, the phenomenon results to be associated to a breaking of the symmetry of the nonequilibrium potential or to a deepening of the potential minima yielding an effective scaling of the noise intensity with the system size.

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