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Resonant Tunneling through Multi-Level and Double Quantum Dots

T. Pohjola·J. König·M. M. Salomaa·J. Schmid·H. Schoeller·Gerd Schön
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Abstract

We study resonant tunneling through quantum-dot systems in the presence of strong Coulomb repulsion and coupling to the metallic leads. Motivated by recent experiments we concentrate on (i) a single dot with two energy levels and (ii) a double dot with one level in each dot. Each level is twofold spin-degenerate. Depending on the level spacing these systems are physical realizations of different Kondo-type models. Using a real-time diagrammatic formulation we evaluate the spectral density and the non-linear conductance. The latter shows a novel triple-peak resonant structure.

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T. Pohjola, J. König, M. M. Salomaa, J. Schmid, H. Schoeller, Gerd Schön. 1996-12-16. Resonant Tunneling through Multi-Level and Double Quantum Dots. https://doi.org/10.1209/epl%2Fi1997-00444-0

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