Quadratic and rate-independent limits for a large-deviations functional
Mathematical Physics
2015-09-30 v1 math.MP
Abstract
We construct a stochastic model showing the relationship between noise, gradient flows and rate-independent systems. The model consists of a one-dimensional birth-death process on a lattice, with rates derived from Kramers' law as an approximation of a Brownian motion on a wiggly energy landscape. Taking various limits we show how to obtain a whole family of generalized gradient flows, ranging from quadratic to rate-independent ones, connected via '' gradient flows. This is achieved via Mosco-convergence of the renormalized large-deviations rate functional of the stochastic process.
Cite
@article{arxiv.1409.4350,
title = {Quadratic and rate-independent limits for a large-deviations functional},
author = {Giovanni A. Bonaschi and Mark A. Peletier},
journal= {arXiv preprint arXiv:1409.4350},
year = {2015}
}