Mesoscopic mechanism of adiabatic charge transport

TL;DR

This paper investigates how adiabatic charge transport in mesoscopic metals, driven by periodic potentials, exhibits random amplitude and sign per sample, with quantum interference dictating the typical charge magnitude.

Contribution

It reveals the sample-specific randomness of charge transfer and highlights the role of quantum interference in mesoscopic adiabatic transport.

Findings

Charge transfer amplitude and sign are sample-specific and random.

Quantum interference determines the characteristic magnitude of transferred charge.

Transport behavior varies significantly across different samples.

Abstract

We consider adiabatic charge transport through mesoscopic metallic samples caused by a periodically changing external potential. We find that both the amplitude and the sign of the charge transferred through a sample per period are random sample specific quantities. The characteristic magnitude of the charge is determined by the quantum interference.