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Threshold-diversity-induced resonance

Author

Listed:
  • Chen, Hanshuang
  • Hou, Zhonghuai
  • Xin, Houwen

Abstract

The effect of diversity on a system of coupled threshold elements is investigated, where each element is driven by a common periodic signal. Diversity is introduced to the system by assuming that the thresholds of all units are heterogeneous, e.g. the thresholds follow a Gaussian or other distribution. A combined numerical and analytical approach shows that the response of the system to the input signal is maximized at a moderate value of the diversity amplitude, which is similar to the well-known stochastic resonance phenomenon induced by noise. Our findings exhibit that the diversity, a kind of spatial disorder, may play a similar role to noise as a kind of temporal disorder.

Suggested Citation

  • Chen, Hanshuang & Hou, Zhonghuai & Xin, Houwen, 2009. "Threshold-diversity-induced resonance," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 388(12), pages 2299-2305.
    • Handle: RePEc:eee:phsmap:v:388:y:2009:i:12:p:2299-2305
    DOI: 10.1016/j.physa.2009.02.024
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