Abstract
The collective behavior of an ensemble of multimode stochastic oscillators is investigated. The oscillators are pulse coupled; they are able to emit pulses and to detect the pulses emitted by the others. As a function of the output intensity in the system they can operate in different modes having different pulsing periods. The system is designed to optimize the output intensity around a fixed output threshold. In order to do so a simple dynamics is considered. Whenever the total output intensity in the system is lower than , a mode with a higher interpulse period is chosen. If the light intensity in the system is higher than , a mode with a lower interpulse period is selected. As a side effect of this simple optimization rule, for a given interval a nontrivial synchronization of the oscillators is observed. The synchronization level is studied by computer simulations, investigating the influence of model parameters (number of modes, stochasticity of the oscillators, the threshold value, and interaction topology). An experimental realization of this system is also considered; an ensemble of electronic oscillators communicating with light pulses was constructed and studied. The experimental system behaves in many ways similar to the theoretically considered multimode stochastic oscillator ensemble.
7 More- Received 14 January 2009
DOI:https://doi.org/10.1103/PhysRevE.79.056205
©2009 American Physical Society