Double Dressing and Manipulation of the Photonic Density of States in Nanostructured Qubits

TL;DR

This paper presents a theoretical and numerical study of how double dressing with electric fields can manipulate the photonic density of states in nanostructured semiconductor qubits, aligning well with recent experiments.

Contribution

It introduces a model for coupling semiconductor qubits with two time-dependent electric fields to control optical states, demonstrating tunable emission spectra in the double dressing regime.

Findings

Control of local density of optical states achieved

Tunable broadening of emission spectra observed

Results agree with experimental data

Abstract

In this work, a model to study the coupling between a semiconductor qubit and two timedependent electric fields is developed. By using it in the resonantly monochromatic double dressing regime, control of the local density of optical states is theoretically and numerically demonstrated for a strongly confined exciton. Drastic changes in the allowed energy transitions yielding tunable broadening of the optically active frequency ranges, are observed in the simulated emission spectra. The presented results are in excellent qualitative and quantitative agreement with recent experimental observations.