Coulomb-induced dynamic correlations in a double nanosystem

Details Coulomb-induced dynamic correlations in a double nanosystem Coulomb-induced dynamic correlations in a double nanosystem

2010-05-21

arxiv.org/abs/1005.3860v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

9 pages, 5 figures

Scientific paper

Time-dependent transport through two capacitively coupled quantum dots is studied in the framework of the generalized master equation. The Coulomb interaction is included within the exact diagonalization method. Each dot is connected to two leads at different times, such that a steady state is established in one dot before the coupling of the other dot to its leads. By appropriately tuning the bias windows on each dot we find that in the final steady state the transport may be suppressed or enhanced. These two cases are explained by the redistribution of charge on the many-body states built on both dots. We also predict and analyze the transient mutual charge sensing of the dots.

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