Nonequilibrium corrections to gradient flow

Abstract

The force on a probe induced by a nonequilibrium medium is in general nongradient. We detail the mechanism of that feature via nonequilibrium response theory. The emergence of nongradient forces is due to a systematic "twist" of the excess frenesy with respect to the entropy flux, in response to changes in the coupling or in the position of the probe in the nonequilibrium medium.

References in corpus (5)

• Fluctuations and response of nonequilibrium states
• An update on nonequilibrium linear response
• An expression for stationary distribution in nonequilibrium steady state
• Frenetic aspects of second order response
• How statistical forces depend on thermodynamics and kinetics of driven media

Cited by in corpus (6)

• Frenesy: time-symmetric dynamical activity in nonequilibria
• Response theory: a trajectory-based approach
• Statistical mechanical foundation of Weber-Fechner laws
• Local detailed balance for active particle models
• Frenetic steering: nonequilibrium-enabled navigation
• A Rayleigh criterion for mechanical instability: inducing activity by chemo-mechanical coupling