Phonon Mediated Off-Resonant Quantum Dot-Cavity Coupling

TL;DR

This paper presents a theoretical model explaining how phonons mediate off-resonant coupling between quantum dots and cavities, highlighting the role of electron-phonon interactions and cavity enhancement in observed spectroscopic phenomena.

Contribution

It introduces a novel theoretical framework for phonon-mediated off-resonant quantum dot-cavity coupling under resonant excitation.

Findings

Coupling is driven by electron-phonon interactions.

Cavity enhances the off-resonant coupling.

Model explains recent experimental spectroscopic data.

Abstract

A theoretical model for the phonon-mediated off-resonant coupling between a quantum dot and a cavity, under resonant excitation of the quantum dot, is presented. We show that the coupling is caused by electron-phonon interaction in the quantum dot and is enhanced by the cavity. We analyze recently observed resonant quantum dot spectroscopic data by our theoretical model.