Probing level renormalization by sequential transport through double quantum dots
Bernhard Wunsch, Matthias Braun, Jürgen König, Daniela Pfannkuche
Abstract
We study electron transport through double quantum dots in series. The tunnel coupling of the discrete dot levels to external leads causes a shift of their energy. This energy renormalization affects the transport characteristics even in the limit of weak dot-lead coupling, when sequential transport dominates. We propose an experimental setup which reveals the renormalization effects in either the current-voltage characteristics or in the stability diagram.
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