Pseudo-spin Kondo effect versus hybridized molecular states in parallel Double Quantum Dots

TL;DR

This paper investigates the competition between the pseudo-spin Kondo effect and hybridized molecular states in a parallel double quantum dot system through cryogenic experiments and simulations, revealing a transition between regimes.

Contribution

It presents experimental and simulation evidence of a transition between Kondo and molecular regimes in a parallel double quantum dot device.

Findings

Identified a transition between Kondo and molecular regimes.

Demonstrated the role of hybridization in quantum dot states.

Validated findings with detailed simulations.

Abstract

A two quantum-dot device is coupled in parallel for studying the competition between the pseudo-spin Kondo effect and strongly hybridized molecular states. Cryogenic measurements are performed in the regime of weak coupling of the two dots to lead states under linear transport conditions. Detailed simulations verify the finding of the transition between the two different regimes.