Nonequilibrium Response and Frenesy
Urna Basu, Christian Maes
TL;DR
This paper explores how time-symmetric kinetic factors, termed frenetic contributions, influence system responses in nonlinear and nonequilibrium regimes, leading to phenomena like negative differential conductivity and altered Einstein relations.
Contribution
It introduces the concept of frenetic contributions to response theory, highlighting their role in nonequilibrium phenomena and providing specific examples of their effects.
Findings
Frenetic contributions can cause negative differential conductivity.
They modify the Einstein relation between friction and noise.
Frenetic effects can lead to population inversion.
Abstract
We present examples of how time-symmetric kinetic factors contribute to the response either in nonlinear order around equilibrium or in linear order around nonequilibrium. The phenomenology we associate to that so called frenetic contribution are negative differential conductivity, changes in the Einstein relation between friction and noise, and population inversion.
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