On-off intermittency over an extended range of control parameter.
We propose a simple phenomenological model exhibiting on-off intermittency over an extended range of control parameter. We find that the distribution of the "off" periods has a power-law tail with an exponent varying continuously between -1 and -2, at odds with standard on-off intermittency which occurs at a specific value of the control parameter and leads to the exponent -3/2. This nontrivial behavior results from the competition between a strong slowing down of the dynamics at small values of the observable and a systematic drift toward large values.
Université de Lyon, Laboratoire de Physique, ENS de Lyon, CNRS, 46 allée d'Italie, F-69007 Lyon, France.
Eric
E
Bertin
D003198:Computer Simulation; D005246:Feedback; D008962:Models, Theoretical