Power laws and stretched exponentials in a noisy finite-time-singularity model

Hans C. Fogedby, Vakhtang Poutkaradze

Published 2002-04-10, updated 2002-05-08Version 3

We discuss the influence of white noise on a generic dynamical finite-time-singularity model for a single degree of freedom. We find that the noise effectively resolves the finite-time-singularity and replaces it by a first-passage-time or absorbing state distribution with a peak at the singularity and a long time tail exhibiting power law or stretched exponential behavior. The study might be of relevance in the context of hydrodynamics on a nanometer scale, in material physics, and in biophysics.