Adiabatic charge pumping through quantum dots in the Coulomb blockade regime

    Authors

    A. R. Hernandez; F. A. Pinheiro; C. H. Lewenkopf;E. R. Mucciolo

    Comments

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    Abbreviated Journal Title

    Phys. Rev. B

    Keywords

    ELECTRON PUMP; TRANSPORT; CONDUCTANCE; FIELD; Physics, Condensed Matter

    Abstract

    We investigate the influence of the Coulomb interaction on the adiabatic pumping current through a quantum dot. Using nonequilibrium Green's functions techniques, we derive a general expression for the current based on the instantaneous Green's function of the dot. We apply this formula to study the dependence of the charge pumped per cycle on the time-dependent pumping potentials. Motivated by recent experiments, the possibility of charge quantization in the presence of a finite Coulomb repulsion energy is investigated.

    Journal Title

    Physical Review B

    Volume

    80

    Issue/Number

    11

    Publication Date

    1-1-2009

    Document Type

    Article

    Language

    English

    First Page

    10

    WOS Identifier

    WOS:000270383200086

    ISSN

    1098-0121

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