Kondo effect in double quantum dots with inter-dot repulsion

Abstract

We investigate a symmetrical double quantum dot system serially attached to the leads. The emphasis is on the numerical analysis of finite inter-dot tunneling in the presence of inter-dot repulsive capacitive coupling. The results reveal the competition between extended Kondo phases and local singlet phases in spin and charge degrees of freedom. The corresponding phase diagram is determined quantitatively.

4 pages, 4 figures

References in corpus (2)

• Orbital Kondo effect in carbon nanotubes
• Quantum phase transition in capacitively coupled double quantum dots

Cited by in corpus (5)

• Numerical renormalization group study of two-channel three-impurity triangular clusters
• Three-orbital Kondo effect in single quantum dot system with plural electrons
• Diatomic molecule as a quantum entanglement switch
• Transport through a double quantum dot with interdot repulsion
• Entanglement and the Kondo effect in double quantum dots