QDsim: A user-friendly toolbox for simulating large-scale quantum dot devices

Fuente: arXiv
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Autori principali: Gualtieri, Valentina, Renshaw-Whitman, Charles, Hernandes, Vinicius, Greplova, Eliska
Natura: Preprint
Pubblicazione: 2024
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author Gualtieri, Valentina
Renshaw-Whitman, Charles
Hernandes, Vinicius
Greplova, Eliska
author_facet Gualtieri, Valentina
Renshaw-Whitman, Charles
Hernandes, Vinicius
Greplova, Eliska
contents We introduce QDsim, a python package tailored for the rapid generation of charge stability diagrams in large-scale quantum dot devices, extending beyond traditional double or triple dots. QDsim is founded on the constant interaction model from which we rephrase the task of finding the lowest energy charge configuration as a convex optimization problem. Therefore, we can leverage the existing package CVXPY, in combination with an appropriate powerful solver, for the convex optimization which streamlines the creation of stability diagrams and polytopes. Through multiple examples, we demonstrate how QDsim enables the generation of large-scale dataset that can serve a basis for the training of machine-learning models for automated tuning algorithms. While the package currently does not support quantum effects beyond the constant interaction model, QDsim is a tool that directly addresses the critical need for cost-effective and expeditious data acquisition for better tuning algorithms in order to accelerate the development of semiconductor quantum devices.
format Preprint
id arxiv_https___arxiv_org_abs_2404_02712
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle QDsim: A user-friendly toolbox for simulating large-scale quantum dot devices
Gualtieri, Valentina
Renshaw-Whitman, Charles
Hernandes, Vinicius
Greplova, Eliska
Mesoscale and Nanoscale Physics
Quantum Physics
We introduce QDsim, a python package tailored for the rapid generation of charge stability diagrams in large-scale quantum dot devices, extending beyond traditional double or triple dots. QDsim is founded on the constant interaction model from which we rephrase the task of finding the lowest energy charge configuration as a convex optimization problem. Therefore, we can leverage the existing package CVXPY, in combination with an appropriate powerful solver, for the convex optimization which streamlines the creation of stability diagrams and polytopes. Through multiple examples, we demonstrate how QDsim enables the generation of large-scale dataset that can serve a basis for the training of machine-learning models for automated tuning algorithms. While the package currently does not support quantum effects beyond the constant interaction model, QDsim is a tool that directly addresses the critical need for cost-effective and expeditious data acquisition for better tuning algorithms in order to accelerate the development of semiconductor quantum devices.
title QDsim: A user-friendly toolbox for simulating large-scale quantum dot devices
topic Mesoscale and Nanoscale Physics
Quantum Physics
url https://arxiv.org/abs/2404.02712