Phonon-assisted transport through double-dot Aharonov-Bohm interferometer in the Kondo regime

TL;DR

This paper investigates how electron-phonon interactions influence electron transport in a double quantum dot Aharonov-Bohm interferometer within the Kondo regime, revealing phonon-induced transport gaps and conductance features.

Contribution

It introduces a mean field slave boson approach to analyze phonon effects on strongly correlated quantum dots in an Aharonov-Bohm ring, highlighting phonon-induced transport gaps.

Findings

Phonon coupling opens a transport gap in double occupancy regions.

Low-bias conductance and thermopower reflect electron-phonon coupling strength.

Transport properties are significantly affected by phonon interactions in the Kondo regime.

Abstract

The effect of electron-phonon coupling on transport through a pair of strongly correlated quantum dots embedded in the Aharonov-Bohm ring is considered in the mean field slave boson Kotliar-Ruckenstein approach. It is shown that coupling with phonons opens transport gap in the region of double occupancy. Low-bias conductance and thermopower provide information on electron-phonon coupling strength.