Chaos-induced escape over a potential barrier.

Phys Rev E Stat Nonlin Soft Matter Phys

Department of Physics, National University of Singapore, Singapore 117542.

Published: October 2004

We investigate the statistical parity of a class of chaos-generated noises on the escape of strongly damped particles out of a potential well. We show that statistical asymmetry in the chaotic fluctuations can lead to a skewed Maxwell-Boltzmann distribution in the well. Depending on the direction of skew, the Kramers escape rate is enhanced or suppressed accordingly. Based on the Perron-Frobenious equation, we determine an analytical expression for the escape rate's prefactor that accounts for this effect. Furthermore, our perturbative analysis proves that in the zeroth-order limit, the rate of particle escape converges to the Kramers rate.

Download full-text PDF

Source
http://dx.doi.org/10.1103/PhysRevE.70.045203DOI Listing

Publication Analysis

Top Keywords

chaos-induced escape
4
escape potential
4
potential barrier
4
barrier investigate
4
investigate statistical
4
statistical parity
4
parity class
4
class chaos-generated
4
chaos-generated noises
4
escape
4

Similar Publications

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!