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STOCHASTIC RESONANCE IN A SIMPLE MODEL OF MAGNETIC REVERSALS.
- Source :
-
International Journal of Bifurcation & Chaos in Applied Sciences & Engineering . Dec2011, Vol. 21 Issue 12, p3489-3495. 7p. 6 Graphs. - Publication Year :
- 2011
-
Abstract
- We discuss the effect of stochastic resonance on a simple model of magnetic reversals. The model exhibits statistically stationary solutions and bimodal distribution of the large scale magnetic field. We observe a nontrivial amplification of stochastic resonance induced by turbulent fluctuations, i.e. the amplitude of the external periodic perturbation needed for stochastic resonance to occur is much smaller than the one estimated by the equilibrium probability distribution of the unperturbed system. We argue that similar amplifications can be observed in many physical systems where turbulent fluctuations are needed to maintain large scale equilibria. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 02181274
- Volume :
- 21
- Issue :
- 12
- Database :
- Academic Search Index
- Journal :
- International Journal of Bifurcation & Chaos in Applied Sciences & Engineering
- Publication Type :
- Academic Journal
- Accession number :
- 71669869
- Full Text :
- https://doi.org/10.1142/S0218127411030684