Correlated sequential tunneling through a double barrier for interacting one-dimensional electrons

M. Thorwart, R. Egger, and M. Grifoni
Phys. Rev. B 72, 035330 – Published 14 July 2005

Abstract

The problem of resonant tunneling through a quantum dot weakly coupled to spinless Tomonaga-Luttinger liquids has been studied. We compute the linear conductance due to sequential tunneling processes upon employing a master equation approach. Besides the previously used lowest-order golden rule rates describing uncorrelated sequential tunneling processes, we systematically include higher-order correlated sequential tunneling (CST) diagrams within the standard Weisskopf-Wigner approximation. We provide estimates for the parameter regions where CST effects can be important. Focusing mainly on the temperature dependence of the peak conductance, we discuss the relation of these findings to previous theoretical and experimental results.

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  • Received 29 July 2004

DOI:https://doi.org/10.1103/PhysRevB.72.035330

©2005 American Physical Society

Authors & Affiliations

M. Thorwart1, R. Egger1, and M. Grifoni2

  • 1Institut für Theoretische Physik, Heinrich-Heine-Universität, D-40225 Düsseldorf, Germany
  • 2Institut für Theoretische Physik, Universität Regensburg, D-93040 Regensburg, Germany

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Issue

Vol. 72, Iss. 3 — 15 July 2005

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