Fano effect in a thermally induced transport through a triple quantum dot within the Coulomb blockade regime

TL;DR

This paper theoretically investigates how Coulomb interactions and quantum interference influence thermoelectric transport and heat transfer in a T-shaped triple quantum dot system within the Coulomb blockade regime.

Contribution

It introduces a detailed theoretical analysis of thermoelectric effects in a triple quantum dot system considering both Coulomb interactions and quantum interference.

Findings

Quantum interference significantly affects charge and heat transfer.

Coulomb interactions modify thermoelectric efficiency.

Transport properties are sensitive to the quantum dot configuration.

Abstract

In the present work we theoretically study thermoelectric transport and heat transfer in a junction including a $T$-shaped double quantum dot coupled to nonmagnetic electrodes and supplemented with a third dot in a parallel configuration. We focus on the combined effect of Coulomb interactions and quantum interference occurring in the $T$-shaped portion of the considered triple quantum dot on the thermoelectric electron transport. The transport through the system is studied within the Coulomb blockade regime in the limit of strong intra-dot interactions between electrons beyond the linear response regime. It is shown that under these conditions both charge and heat transfer through the considered system may be significantly affected by the quantum interference and inter-dot Coulomb interactions.