Resonance Fluorescence in Transport through Quantum Dots: Noise Properties

TL;DR

This paper investigates the noise properties of a driven quantum dot system interacting with a phonon bath, revealing how external controls can manipulate electronic and phononic noise correlations.

Contribution

It introduces a novel method to simultaneously analyze full counting statistics and correlations of tunneling and phonon emission events in quantum dots.

Findings

Quantum noise can be tuned via external parameters.

Electronic and phononic noise correlations are controllable.

The method enables detailed analysis of transport and relaxation processes.

Abstract

We study a two-level quantum dot embedded in a phonon bath and irradiated by a time-dependent ac field and develope a method that allows us to extract simultaneously the full counting statistics of the electronic tunneling and relaxation (by phononic emission) events as well as their correlation. We find that the quantum noise of both the transmitted electrons and the emitted phonons can be controlled by the manipulation of external parameters such as the driving field intensity or the bias voltage.