Shot noise of quantum ring excitons in a planar microcavity

TL;DR

This paper theoretically investigates the shot noise of quantum ring excitons in a microcavity, revealing how current noise can provide insights into radiative decay and tunnel barriers, with distinctions from quantum dots.

Contribution

It introduces a theoretical analysis of shot noise in quantum ring excitons within microcavities, highlighting unique noise features compared to quantum dots.

Findings

Shot noise reveals radiative decay properties of QR excitons.

Distinct noise features differentiate QR from quantum dots.

Potential for experimental observation of these noise characteristics.

Abstract

Shot noise of quantum ring (QR) excitons in a p-i-n junction surrounded by a microcavity is investigated theoretically. Some radiative decay properties of a QR exciton in a microcavity can be obtained from the observation of the current noise, which also gives the extra information about one of the tunnel barriers. Different noise feature between the quantum dot (QD) and QR is pointed out, and may be observed in a suitably designed experiment.