Entropy production, energy loss and currents in adiabatically rocked thermal ratchets

TL;DR

This paper investigates the behavior of currents, energy loss, and entropy production in adiabatically rocked thermal ratchets, revealing that current peaks are not due to resonance and are uncorrelated with entropy maxima.

Contribution

It provides a detailed analysis of stochastic energetics in thermal ratchets, clarifying the nature of current peaks and their relation to energy dissipation and entropy production.

Findings

Currents peak at specific noise levels without resonance effects.

No direct correlation between current maxima and entropy production.

Energy loss analysis explains the absence of synchronization phenomena.

Abstract

We study the nature of currents, input energy and entropy production in different types of adiabatically rocked ratchets using the method of stochastic energetics. The currents exhibit a peak as a function of noise strength. We show that there is no underlying resonance or synchronisation phenomena in the dynamics of the particle with these current peaks. This follows from the analysis of energy loss in the medium. We also show that the maxima seen in current as well as the total entropy production are not directly correlated.