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Low temperature transport in AC-driven Quantum Dots in the Kondo regime

Rosa Lopez·Ramon Aguado·Gloria Platero·Carlos Tejedor
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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.

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Rosa Lopez, Ramon Aguado, Gloria Platero, Carlos Tejedor. 2000-09-18. Low temperature transport in AC-driven Quantum Dots in the Kondo regime. https://doi.org/10.1103/physrevb.64.075319

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