Floquet scattering matrix approach to the phase noise of a single-electron source in the adiabatic regime

TL;DR

This paper develops a Floquet scattering matrix framework to analyze phase noise in a single-electron source operating adiabatically, revealing frequency-dependent noise characteristics in mesoscopic conductors.

Contribution

It introduces a Floquet scattering matrix method for dynamic quantum transport analysis, specifically addressing phase noise in adiabatic single-electron sources.

Findings

Noise power is quadratic at low frequencies.

Noise power is exponentially suppressed at high frequencies.

The approach provides a detailed understanding of phase noise behavior.

Abstract

We give the basic elements of the Floquet scattering matrix approach to the dynamic quantum transport in mesoscopic and nanoscopic conductors. We use the scattering formalism to discuss the noise power spectrum of a single electron source working in the adiabatic regime and emitting particles into a chiral electron waveguide. The noise power is found to be quadratic at low frequencies and exponentially suppressed at high frequencies.