Title

Adiabatic charge pumping through quantum dots in the Coulomb blockade regime

Authors

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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