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System size stochastic resonance: general nonequilibrium potential framework
B von Haeften1, G Izús, H S Wio
1Departamento de Física, FCEyN, Universidad Nacional de Mar del Plata, Deán Funes 3350, 7600 Mar del Plata, Argentine.
Summary
System size stochastic resonance is explained using nonequilibrium potential. Analysis reveals symmetry breaking or deepening potential minima, effectively scaling noise intensity with system size in extended systems.
Area of Science:
- Statistical physics
- Complex systems
Background:
- Stochastic resonance is a phenomenon where a weak signal can be amplified by adding noise.
- Understanding stochastic resonance in spatially extended systems is crucial for various scientific fields.
Purpose of the Study:
- To investigate system size stochastic resonance within the nonequilibrium potential framework.
- To provide a clear physical interpretation of this phenomenon in extended systems.
Main Methods:
- Analysis of the nonequilibrium potential for three different cases of spatially extended systems.
- Exploiting the properties of the nonequilibrium potential to understand the phenomenon.
Main Results:
- The nonequilibrium potential framework offers a clear physical interpretation of system size stochastic resonance.
- The phenomenon is linked to the symmetry breaking or deepening of potential minima.
- An effective scaling of noise intensity with system size is observed.
Conclusions:
- The nonequilibrium potential is a powerful tool for understanding stochastic resonance in extended systems.
- System size effects on stochastic resonance can be explained by changes in the potential landscape.