Effect of the Coulomb repulsion on the {\it ac} transport through a quantum dot

Details Effect of the Coulomb repulsion on the {\it ac} transport through a quantum dot Effect of the Coulomb repulsion on the {\it ac} transport through a quantum dot

1994-05-06

arxiv.org/abs/cond-mat/9405014v1

Physics

Condensed Matter

13 pages, REVTEX 3.0, 2 .ps figures from vladimir@margo.cas.neu.edu, NUB-3087

Scientific paper

10.1103/PhysRevB.50.4917

We calculate in a linear response the admittance of a quantum dot out of equilibrium. The interaction between two electrons with opposite spins simultaneously residing on the resonant level is modeled by an Anderson Hamiltonian. The electron correlations lead to the appearence of a new feature in the frequency dependence of the conductance. For certain parameter values there are two crossover frequencies between a capacitive and an inductive behavior of the imaginary part of the admittance. The experimental implications of the obtained results are briefly discussed.

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