Extrapolation to nonequilibrium from coarse grained response theory
Statistical Mechanics
2018-05-09 v2
Abstract
Nonlinear response theory, in contrast to linear cases, involves (dynamical) details, and this makes application to many body systems challenging. From the microscopic starting point we obtain an exact response theory for a small number of coarse grained degrees of freedom. With it, an extrapolation scheme uses near-equilibrium measurements to predict far from equilibrium properties (here, second order responses). Because it does not involve system details, this approach can be applied to many body systems. It is illustrated in a four state model and in the near critical Ising model.
Keywords
Cite
@article{arxiv.1707.00932,
title = {Extrapolation to nonequilibrium from coarse grained response theory},
author = {Urna Basu and Laurent Helden and Matthias Krüger},
journal= {arXiv preprint arXiv:1707.00932},
year = {2018}
}
Comments
Accepted for publication in Phys. Rev. Lett