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Dresden 2003 – scientific programme

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DY: Dynamik und Statistische Physik

DY 24: Nonlinear stochastic systems

DY 24.6: Talk

Tuesday, March 25, 2003, 16:00–16:15, G\"OR/226

Noise-Induced Collective Limit Cycles — •Xaver Sailer1, Kevin Hope2, Ryoichi Kawai2, and Lutz Schimansky-Geier11Theorie Stochastischer Prozesse, Humboldt Universität, Berlin — 2Department of Physics, University of Alabama at Birmingham, USA

We consider an ensemble of globally coupled nonlinear systems with multiplicative noise. While a single system has a stable fixed point in the deterministic case and exhibits random fluctuations in the stochastic case, the ensemble shows in a certain parameter region collective oscillations. This region is reached via a supercritical Hopf bifurcation.

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