PMID: 15244907Jul 13, 2004Paper

Resonant patterns in noisy active media

Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
Changsong Zhou, J Kurths

Abstract

We investigate noise-controlled resonant response of active media to weak periodic forcing, both in excitable and oscillatory regimes. In the excitable regime, we find that noise-induced irregular wave structures can be reorganized into frequency-locked resonant patterns by weak signals with suitable frequencies. The resonance occurs due to a matching condition between the signal frequency and the noise-induced inherent time scale of the media. m:1 resonant regions similar to the Arnold tongues in frequency locking of self-sustained oscillatory media are observed. In the self-sustained oscillatory regime, noise also controls the oscillation frequency and reshapes significantly the Arnold tongues. The combination of noise and weak signal thus could provide an efficient tool to manipulate active extended systems in experiments.

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Citations

Jul 11, 2006·The Journal of Chemical Physics·Jichang Wang, Yu Chen
Oct 10, 2006·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Hongli WangQi Ouyang

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