# Nonequilibrium spin noise in a quantum dot ensemble

## TL;DR

This paper investigates how additional photoexcited charge carriers affect spin noise in quantum dots, combining theoretical modeling with experimental data to reveal differences in charge recharging dynamics for holes and electrons.

## Contribution

It introduces a comprehensive model that accounts for charge generation and relaxation, accurately describing spin noise behavior under above barrier excitation.

## Key findings

- Spin noise is significantly influenced by photoexcited charge carriers.
- Theoretical model successfully reproduces experimental data.
- Distinct recharging dynamics observed for holes and electrons.

## Abstract

The spin noise in singly charged self-assembled quantum dots is studied theoretically and experimentally under the influence of a perturbation, provided by additional photoexcited charge carriers. The theoretical description takes into account generation and relaxation of charge carriers in the quantum dot system. The spin noise is measured under application of above barrier excitation for which the data are well reproduced by the developed model. Our analysis demonstrates a strong difference of the recharging dynamics for holes and electrons in quantum dots.