Influence of phonons on exciton-photon interaction and photon statistics of a quantum dot

TL;DR

This study explores how phonons influence the optical properties and photon statistics of a quantum dot, revealing their significant impact on coherence, Rabi oscillations, and photon antibunching in quantum dot systems.

Contribution

It provides a detailed analysis of phonon effects on quantum dot optical dynamics and photon statistics, including the impact of detuning and cavity interactions.

Findings

Phonons strongly affect Rabi oscillations and optical coherence.

Emitted photons are anti-bunched and follow sub-Poissonian statistics.

Detuning and cavity interactions influence optical coherence of energy levels.

Abstract

In this paper, we investigate, phonon effects on the optical properties of a spherical quantum dot. For this purpose, we consider the interaction of a spherical quantum dot with classical and quantum fields while the exciton of quantum dot interacts with a solid state reservoir. We show that phonons strongly affect the Rabi oscillations and optical coherence on first picoseconds of dynamics. We consider the quantum statistics of emitted photons by quantum dot and we show that these photons are anti-bunched and obey the sub-Poissonian statistics. In addition, we examine the effects of detuning and interaction of quantum dot with the cavity mode on optical coherence of energy levels. The effects of detuning and interaction of quantum dot with cavity mode on optical coherence of energy levels are compared to the effects of its interaction with classical pulse.