Coherent control and decoherence of charge states in quantum dots

TL;DR

This paper reviews recent experimental and theoretical advances in optical control of charge states in quantum dots, focusing on Rabi oscillations, interference experiments, and carrier-phonon interactions affecting coherence.

Contribution

It provides a comprehensive overview of the latest methods and findings in controlling and understanding decoherence in quantum dot charge states.

Findings

Observation of Rabi oscillations in exciton and biexciton states

Analysis of carrier-phonon interactions causing dephasing

Discussion of modern theoretical models for carrier-phonon kinetics

Abstract

This Chapter contains a review of the recent results, both experimental and theoretical, related to optical control of carriers confined in semiconductor quantum dots. The physics of Rabi oscillations of exciton and biexciton occupations, as well as time-domain interference experiments are discussed. Next, the impact of carrier--phonon interaction in a semiconductor structure is described and modern methods of theoretical description of the carrier--phonon kinetics and of the resulting dephasing are presented.