Fluctuation Relations for Current Components in Mesoscopic Electric Circuits

TL;DR

This paper introduces Fluctuation Relations for Current Components (FRCCs), a new class of fluctuation relations in mesoscopic circuits that help estimate system parameters without detailed knowledge of electron interactions.

Contribution

The paper proposes FRCCs as a novel, robust set of fluctuation relations applicable to mesoscopic circuits, independent of certain electron interactions and quantum coherence effects.

Findings

FRCCs can estimate system parameters without full interaction details

FRCCs are robust against specific electron interactions

FRCCs do not depend on some quantum coherence effects

Abstract

We present a new class of fluctuation relations, to which we will refer as Fluctuation Relations for Current Components (FRCCs). FRCCs can be used to estimate system parameters when complete information about nonequilibrium many-body electron interactions is unavailable. We show that FRCCs are often robust in the sense that they do not depend on some basic types of electron interactions and some quantum coherence effects.