Stochastic resonance in a model of opinion formation on small-world networks

Details Stochastic resonance in a model of opinion formation on small-world networks Stochastic resonance in a model of opinion formation on small-world networks

2001-11-15

arxiv.org/abs/cond-mat/0111289v1

Physics

Condensed Matter

Disordered Systems and Neural Networks

5 pages, 5 figures included

Scientific paper

10.1140/epjb/e20020104

We analyze the phenomenon of stochastic resonance in an Ising-like system on a small-world network. The system, which is subject to the combined action of noise and an external modulation, can be interpreted as a stylized model of opinion formation by imitation under the effects of a ``fashion wave''. Both the amplitude threshold for the detection of the external modulation and the width of the stochastic-resonance peak show considerable variation as the randomness of the underlying small-world network is changed.

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