Steering of a Bosonic Mode with a Double Quantum Dot

TL;DR

This paper explores how a double quantum dot system can control a bosonic mode's quantum state via electron transport, demonstrating tunable quantum properties through system parameter adjustments.

Contribution

It introduces a method to steer a bosonic mode's quantum state using a double quantum dot, highlighting control via electronic parameters and stationary current.

Findings

Boson distribution properties can be manipulated by dot energy differences.

Quadrature variances and Wigner functions show controllable quantum states.

Stationary electron current influences the bosonic mode's quantum coherence.

Abstract

We investigate the transport and coherence properties of a double quantum dot coupled to a single damped boson mode. Our numerically results reveal how the properties of the boson distribution can be steered by altering parameters of the electronic system such as the energy difference between the dots. Quadrature amplitude variances and the Wigner function are employed to illustrate how the state of the boson mode can be controlled by a stationary electron current through the dots.