Coulomb correlations effects on localized charge relaxation in the coupled quantum dots

TL;DR

This paper investigates how Coulomb interactions influence charge relaxation dynamics in coupled quantum dots, revealing modified relaxation rates and a novel non-monotonic charge evolution mechanism due to charge redistribution between relaxation channels.

Contribution

It introduces a new understanding of Coulomb effects on charge relaxation and proposes a mechanism for non-monotonic charge evolution in coupled quantum dots.

Findings

Coulomb interaction alters relaxation rates.

Charge redistribution causes non-monotonic charge evolution.

New mechanism for charge dynamics in quantum dots.

Abstract

We analyzed localized charge time evolution in the system of two interacting quantum dots (QD) (artificial molecule) coupled with the continuous spectrum states. We demonstrated that Coulomb interaction modifies relaxation rates and is responsible for non-monotonic time evolution of the localized charge. We suggested new mechanism of this non-monotonic charge time evolution connected with charge redistribution between different relaxation channels in each QD.