Quantum kinetic approach for studying thermal transport in the presence of electron-electron interactions and disorder

TL;DR

This paper introduces a quantum kinetic equation-based scheme for analyzing thermal transport in systems with electron-electron interactions and disorder, offering an easier alternative to the traditional Kubo formula.

Contribution

The authors develop a user-friendly quantum kinetic approach that simplifies thermal transport calculations involving interactions and disorder, providing a versatile alternative to existing methods.

Findings

The scheme is suitable for systematic perturbative calculations.

It offers a general analysis framework for thermal transport.

It serves as an easier alternative to the Kubo formula.

Abstract

A user friendly scheme based on the quantum kinetic equation is developed for studying thermal transport phenomena in the presence of interactions and disorder. We demonstrate that this scheme is suitable for both a systematic perturbative calculation as well as a general analysis. We believe that we present an adequate alternative to the Kubo formula, which for the thermal transport is rather cumbersome.