Parametric electron pumping through a quantum dot in the Kondo regime

TL;DR

This paper presents a theoretical analysis of electron pumping through a quantum dot in the Kondo regime, deriving expressions for pumped current and exploring its dependence on system parameters.

Contribution

It introduces a new theoretical framework for analyzing parametric electron pumping in the Kondo regime using non-equilibrium Green's functions.

Findings

Pumped current depends on gate voltage, pumping amplitude, and phase difference.

Derived explicit expression for pumped current in the Kondo regime.

Revealed interesting physics related to parameter dependence in quantum dot systems.

Abstract

We report a theoretical analysis of parametric electron pump through a quantum dot in the Kondo regime. In the adiabatic regime, we have derived the expression for pumped current in the Kondo regime using non-equilibrium Green's function. The pumped current versus different system parameters such as gate voltage, pumping amplitude, as well as the phase difference between two pumping forces are calculated and interesting physics are revealed.