Conversion of charge input into Kondo response

TL;DR

This paper demonstrates how charge signals applied to a double quantum dot can be transformed into Kondo cotunneling current pulses, revealing the spin response of a nano-device under strong Coulomb blockade conditions.

Contribution

It introduces a method to convert charge input signals into Kondo response signals, linking charge control to spin dynamics in quantum dots.

Findings

Charge input signals can be converted into Kondo cotunneling current pulses.

The stochastic component acts as an infrared cutoff in Kondo transmission.

The approach reveals the spin response of nano-devices under Coulomb blockade.

Abstract

We show how the charge input signal applied to the gate electrode in double quantum dot may be converted to a pulse in the Kondo cotunneling current as a spin response of a nano-device in a strong Coulomb blockade regime. The stochastic component of the input signal comes as the infrared cutoff of Kondo transmission.