Stochastic resonance in two-dimensional arrays of coupled nonlinear oscillators
In this Brief Report we report the results of computer simulations on the periodic and noise driving of two-dimensional square arrays of coupled nonlinear oscillators. We find significant improvement in the output of these arrays over their one-dimensional counterparts (quantified by signal-to-noise ratio in the power spectrum at the frequency of the periodic driving). We also find that, within the limited resolution of our simulations, the one-dimensional scaling laws proposed by Lindner et al. [Phys. Rev. E 53, 2081 (1996)] seem to hold quite well for two-dimensional arrays.
Sungar
N
Department of Physics, California Polytechnic State University, San Luis Obispo, California 93407, USA.
Sharpe
JP
Weber
S