Electron and hole spin dynamics and decoherence in quantum dots

TL;DR

This paper reviews the mechanisms of spin decoherence and dynamics in quantum dots, focusing on hyperfine interactions for electrons and spin-orbit effects for holes, including manipulation techniques.

Contribution

It provides a comprehensive comparison of electron and hole spin decoherence mechanisms and discusses recent control methods like electric dipole spin resonance.

Findings

Hyperfine interaction causes electron spin decoherence in quantum dots.

Spin-orbit interaction leads to heavy-hole spin relaxation and decoherence.

Electric dipole spin resonance enables manipulation of heavy-hole spins.

Abstract

In this article we review our work on the dynamics and decoherence of electron and hole spins in single and double quantum dots. The first part, on electron spins, focuses on decoherence induced via the hyperfine interaction while the second part covers decoherence and relaxation of heavy-hole spins due to spin-orbit interaction as well as the manipulation of heavy-hole spin using electric dipole spin resonance.