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Stochastic resonance in coupled nonlinear dynamic elements.
M. Locher1, D. Cigna, E. R. Hunt
1Department of Physics and Astronomy, Condensed Matter and Surface Sciences Program, Ohio University, Athens, Ohio 45701.
Chaos (Woodbury, N.Y.)
|June 5, 2003
Summary
This study explores how thermal noise affects coupled diode resonators, revealing links between spatiotemporal stochastic resonance and kink-antikink pairs. Simulations and analytical models clarify synchronization and signal processing in nonlinear systems.
Area of Science:
- Nonlinear dynamics
- Statistical physics
- Condensed matter physics
Background:
- Diode resonator arrays are susceptible to thermal noise.
- Spatiotemporal stochastic resonance is a key phenomenon in nonlinear systems.
- Kink-antikink dynamics play a role in array behavior.
Purpose of the Study:
- To investigate the response of diffusively coupled diode resonators to thermal noise.
- To examine the relationship between spatiotemporal stochastic resonance and kink-antikink pairs.
- To analyze synchronization and signal processing in a Phi(4) field theory.
Main Methods:
- Experimental investigation of diode resonator arrays.
- Simulations using a coupled map lattice.
- Analytical treatment of a Phi(4) field theory.
Main Results:
- Demonstrated the influence of thermal noise on resonator arrays.
- Established a connection between spatiotemporal stochastic resonance and kink-antikink pairs.
- Presented analytical findings on synchronization and signal processing.
Conclusions:
- Thermal noise significantly impacts coupled diode resonators.
- Kink-antikink pairs are crucial for spatiotemporal stochastic resonance.
- Nonlinear coupling affects system dynamics and signal processing capabilities.