Dynamical Fluctuation-Response Relations

Fuente: arXiv
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Main Authors: Aslyamov, Timur, Esposito, Massimiliano
Format: Preprint
Published: 2026
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author Aslyamov, Timur
Esposito, Massimiliano
author_facet Aslyamov, Timur
Esposito, Massimiliano
contents We derive exact dynamical fluctuation-response relations (FRRs) for time-integrated observables of any nonautonomous Markov jump process. The finite-time covariance splits into an initial variability and an integral of response kernels along the driven dynamics. The identity sharpens the dynamical response thermodynamic and kinetic uncertainty relations and fluctuation-response inequalities (FRIs). It also recovers steady-state FRRs, fluctuation-dissipation theorem and Onsager reciprocity, identifies known autonomous FRIs as the zero-frequency mode.
format Preprint
id arxiv_https___arxiv_org_abs_2604_24626
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Dynamical Fluctuation-Response Relations
Aslyamov, Timur
Esposito, Massimiliano
Statistical Mechanics
We derive exact dynamical fluctuation-response relations (FRRs) for time-integrated observables of any nonautonomous Markov jump process. The finite-time covariance splits into an initial variability and an integral of response kernels along the driven dynamics. The identity sharpens the dynamical response thermodynamic and kinetic uncertainty relations and fluctuation-response inequalities (FRIs). It also recovers steady-state FRRs, fluctuation-dissipation theorem and Onsager reciprocity, identifies known autonomous FRIs as the zero-frequency mode.
title Dynamical Fluctuation-Response Relations
topic Statistical Mechanics
url https://arxiv.org/abs/2604.24626