Nonlinear thermoelectric response of quantum dots: Renormalized dual fermions out of equilibrium

Stefan Kirchner*, Farzaneh Zamani, Enrique Muñoz

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

4 Scopus citations


The thermoelectric transport properties of nanostructured devices continue to attract attention from theorists and experimentalist alike as the spatial confinement allows for a controlled approach to transport properties of correlated matter. Most of the existing work, however, focuses on thermoelectric transport in the linear regime despite the fact that the nonlinear conductance of correlated quantum dots has been studied in some detail throughout the last decade. Here, we review our recent work on the effect of particle-hole asymmetry on the nonlinear transport properties in the vicinity of the strong coupling limit of Kondo-correlated quantum dots and extend the underlying method, a renormalized superperturbation theory on the Keldysh contour, to the thermal conductance in the nonlinear regime. We determine the charge, energy, and heat current through the nanostructure and study the nonlinear transport coefficients, the entropy production, and the fate of the Wiedemann-Franz law in the non-thermal steady-state. Our approach is based on a renormalized perturbation theory in terms of dual fermions around the particle-hole symmetric strong-coupling limit.

Original languageEnglish
Title of host publicationNew Materials for Thermoelectric Applications
Subtitle of host publicationTheory and Experiment
EditorsVeljko Zlatic, Alex Hewson
Number of pages40
StatePublished - 2013

Publication series

NameNATO Science for Peace and Security Series B: Physics and Biophysics
ISSN (Print)1874-6500


Dive into the research topics of 'Nonlinear thermoelectric response of quantum dots: Renormalized dual fermions out of equilibrium'. Together they form a unique fingerprint.

Cite this