Codebase release 1.0 for QDarts

SciPost Physics Codebases

Abstract

We present QDarts, an efficient simulator for realistic charge stability diagrams of quantum dot array (QDA) devices in equilibrium states. It allows for pinpointing the location of concrete charge states and their transitions in a high-dimensional voltage space (via arbitrary two-dimensional cuts through it), and includes effects of finite tunnel coupling, non-constant charging energy and a simulation of noisy sensor dots. These features enable close matching of various experimental results in the literature, and the package hence provides a flexible tool for testing QDA experiments, as well as opening the avenue for developing new methods of device tuning.

Authors 4

1. Jan A. Krzywda Aachen

   Leiden University

   Affiliation as printed

   Leiden University

2. Weikun Liu

   University of Copenhagen

   Affiliation as printed

   University of Copenhagen

3. Evert van Nieuwenburg Aachen

   Leiden University

   Affiliation as printed

   Leiden University

4. Oswin Krause

   University of Copenhagen

   Affiliation as printed

   University of Copenhagen