Collective luminescence and phonon-induced processes in double quantum dots

TL;DR

This paper investigates how double quantum dots interact with their environment, focusing on radiative decay, phonon effects, and excitation transfer, using a unified simulation approach.

Contribution

It introduces a unified method to simulate double quantum dot dynamics considering both electromagnetic and phononic interactions.

Findings

Analysis of sub- and superradiant decay behaviors.

Demonstration of phonon-induced entanglement decay.

Insights into excitation transfer mechanisms.

Abstract

We study the evolution of a quantum state of a double quantum dot system interacting with the electromagnetic environment and with the lattice modes, in the presence of a coupling between the two dots. We propose a unified approach to the simulation of the system evolution under joint impact of the two reservoirs. We discuss the sub- and superradiant radiative decay of the system, the phonon-induced decay of entanglement between the dots, and the transfer of excitation between them.