Thermodynamic constraints on the nonequilibrium response of one-dimensional diffusions

Phys Rev E. 2022 Jan;105(1):L012102. doi: 10.1103/PhysRevE.105.L012102.

Abstract

We analyze the static response to perturbations of nonequilibrium steady states that can be modeled as one-dimensional diffusions on the circle. We demonstrate that an arbitrary perturbation can be broken up into a combination of three specific classes of perturbations that can be fruitfully addressed individually. For each class, we derive a simple formula that quantitatively characterizes the response in terms of the strength of nonequilibrium driving valid arbitrarily far from equilibrium.