Adiabatic pumping through a quantum dot with coulomb interactions: A perturbation expansion in the tunnel coupling

Abstract

We present a diagrammatic real-time approach to adiabatic pumping of electrons through interacting quantum dots. Performing a systematic perturbation expansion in the tunnel-coupling strength, we compute the charge pumped through a single-level quantum dot per pumping cycle. The combination of Coulomb interaction and quantum fluctuations, accounted for in contributions of higher order in the tunnel coupling, modifies the pumping characteristics via an interaction-dependent renormalization of the quantum-dot level. The latter is even responsible for the {\em dominant} contribution to the pumped charge when pumping via time-dependent tunnel-coupling strengths.

11 pages, 7 figures, published in Phys. Rev. B

References in corpus (3)

• Full Counting Statistics in Strongly Interacting Systems: Non-Markovian Effects
• Adiabatic pumping through interacting quantum dots
• Adiabatic pumping in the mixed-valence and Kondo regimes

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