Nernst-like Effect in a Flexible Chain

TL;DR

This paper explores a Nernst-like effect in a charged flexible chain, revealing how nonlinear dynamics and nonequilibrium conditions cause perpendicular particle displacement and heat flow, with a developed linear response theory explaining the phenomena.

Contribution

It introduces a linear response formalism to quantitatively explain the Nernst-like effect in a charged flexible chain under magnetic fields.

Findings

Nernst-like effect causes perpendicular particle displacement.

External ac-driving induces heat current in homogeneous systems.

The phenomenon is explained by a developed linear response theory.

Abstract

We investigate heat transport via a charged flexible chain in the presence of magnetic fields. We focus on the Nernst-like effect, where the average positions of particles deviate in the perpendicular direction to the heat flow. This phenomenon is induced by the nonlinear dynamics as well as nonequilibrium state. We develop a linear response formalism to derive a thermodynamic force which induces the Nernst-like effect, and show that the phenomenon is quantitatively explained. We also discuss the inverse effect, where an external ac-driving force induces finite net heat current in the homogeneous system attached to heat baths with the same temperature.