Nonlinear Transport through Coupled Double Quantum Dot Systems


We investigate sequential tunneling transport through a semiconductor double quantum dot structure by combining a simple microscopic quantum confinement model with a Mott-Hubbard type correlation model. We calculate nonperturbatively the evolution of the Coulomb blockade oscillations as a function of the interdot barrier conductance, obtaining good qualitative agreement with the experimental data over the whole tunneling regime from the weak-coupling individual dot to the strongcoupling coherent double-dot molecular system. 73.20.Dx, 71.45.-d, 73.40.Gk Typeset using REVTEX

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@inproceedings{Kotlyar2008NonlinearTT, title={Nonlinear Transport through Coupled Double Quantum Dot Systems}, author={Roza Kotlyar}, year={2008} }