Generalized Green-Kubo formula and fluctuation theorem for quantum current system around a nonequilibrium steady state

TL;DR

This paper derives a fluctuation theorem for quantum current systems near nonequilibrium steady states, linking it to a generalized Green-Kubo formula and nonlinear response theory, enhancing understanding of quantum transport.

Contribution

It introduces a unified framework connecting fluctuation theorem with generalized Green-Kubo formula for quantum systems near nonequilibrium steady states.

Findings

Fluctuation theorem established for quantum current systems.

Connection between fluctuation theorem and nonlinear response theory.

Framework applicable to external fields and chemical potential changes.

Abstract

Fluctuation theorem is derived for a quantum current system around a nonequilibrium steady state. It is demonstrated that the fluctuation theorem can be a part of the generalized Green-Kubo formula or a nonlinear response theory of an external field or a change of the chemical potential difference.