Ergodicity and large deviations in physical systems with stochastic dynamics

RL Jack - The European Physical Journal B, 2020 - Springer
In ergodic physical systems, time-averaged quantities converge (for large times) to their
ensemble-averaged values. Large deviation theory describes rare events where these time …

Sampling efficiency of transverse forces in dense liquids

F Ghimenti, L Berthier, G Szamel, F van Wijland - Physical Review Letters, 2023 - APS
Sampling the Boltzmann distribution using forces that violate detailed balance can be faster
than with the equilibrium evolution, but the acceleration depends on the nature of the …

Jump processes as generalized gradient flows

MA Peletier, R Rossi, G Savaré, O Tse - Calculus of Variations and Partial …, 2022 - Springer
We have created a functional framework for a class of non-metric gradient systems. The
state space is a space of nonnegative measures, and the class of systems includes the …

Entropy production and its large deviations in an active lattice gas

T Agranov, ME Cates, RL Jack - Journal of Statistical Mechanics …, 2022 - iopscience.iop.org
Active systems are characterized by a continuous production of entropy at steady state. We
study the statistics of entropy production within a lattice-based model of interacting active …

Coarse graining empirical densities and currents in continuous-space steady states

C Dieball, A Godec - Physical Review Research, 2022 - APS
We present the conceptual and technical background required to describe and understand
the correlations and fluctuations of the empirical density and current of steady-state diffusion …

[HTML][HTML] Cosh gradient systems and tilting

MA Peletier, A Schlichting - Nonlinear Analysis, 2023 - Elsevier
We review a class of gradient systems with dissipation potentials of hyperbolic-cosine type.
We show how such dissipation potentials emerge in large deviations of jump processes …

Hessian geometry of nonequilibrium chemical reaction networks and entropy production decompositions

TJ Kobayashi, D Loutchko, A Kamimura… - Physical Review …, 2022 - APS
We derive the Hessian geometric structure of nonequilibrium chemical reaction networks on
the flux and force spaces induced by the Legendre duality of convex dissipation functions …

Mathematical, thermodynamical, and experimental necessity for coarse graining empirical densities and currents in continuous space

C Dieball, A Godec - Physical Review Letters, 2022 - APS
We present general results on fluctuations and spatial correlations of the coarse-grained
empirical density and current of Markovian diffusion in equilibrium or nonequilibrium steady …

Role of current fluctuations in nonreversible samplers

F Coghi, R Chetrite, H Touchette - Physical Review E, 2021 - APS
It is known that the distribution of nonreversible Markov processes breaking the detailed
balance condition converges faster to the stationary distribution compared to reversible …

Nonequilibrium currents in stochastic field theories: A geometric insight

J O'Byrne - Physical Review E, 2023 - APS
We introduce a formalism to study nonequilibrium steady-state probability currents in
stochastic field theories. We show that generalizing the exterior derivative to functional …