Low temperature transport in AC-driven Quantum Dots in the Kondo regime
Abstract
We present a fully nonequilibrium calculation of the low temperature transport properties of a quantum dot in the Kondo regime when an AC potential is applied to the gate voltage. We solve a time dependent Anderson model with finite on-site Coulomb interaction. The interaction self-energy is calculated up to second order in perturbation theory in the on-site interaction, in the context of the Keldysh non-equilibrium technique, and the effect of the AC voltage is taken into account exactly for all ranges of AC frequencies and AC intensities. The obtained linear conductance and time-averaged density of states of the quantum dot evolve in a non trivial way as a function of the AC frequency and AC intensity of the harmonic modulation.
Cite
@article{arxiv.cond-mat/0009263,
title = {Low temperature transport in AC-driven Quantum Dots in the Kondo regime},
author = {Rosa Lopez and Ramon Aguado and Gloria Platero and Carlos Tejedor},
journal= {arXiv preprint arXiv:cond-mat/0009263},
year = {2009}
}
Comments
30 pages,7 figures