Quantum information transfer between hole spins and topological states

Informations projet

QUIST

N° de convention de subvention: 850641

DOI

10.3030/850641

Projet clôturé

Date de signature de la CE 2 Octobre 2019

Date de début 1 Novembre 2019

Date de fin 31 Octobre 2024

Financé au titre de

• EXCELLENT SCIENCE - European Research Council (ERC)

Coût total

€ 1 873 285,00

Contribution de l’UE

€ 1 873 285,00

Coordonné par

TECHNISCHE UNIVERSITEIT DELFT
Netherlands

Periodic Reporting for period 4 - QUIST (Quantum information transfer between hole spins and topological states)

Période du rapport: 2024-05-01 au 2024-10-31

Résumé du contexte et des objectifs généraux du projet

Large-scale quantum computers have the potential to address large societal challenges. Semiconductor quantum dots define a compelling starting point for building such computers. However, it is currently unclear how to scale quantum dots to large numbers. One vision is based on networked computing, where local registers of qubits are interconnected using long-rang quantum links. This proposal aims to build such local registers, realize long-range quantum links, and integrate them together as a step toward scalable quantum technology.

Travail effectué depuis le début du projet jusqu’à la fin de la période considérée dans le rapport et principaux résultats atteints jusqu’à présent

This project has resulted in the demonstration of qubit registers, operated with high-fidelity, and scaled in two dimensions. Furthermore, this project has led to the realization of quantum links, that can connect remote qubit registers. Additionally, a novel qubit has been realized, the hopping spin qubit, which constitutes an implementation that requires low power, can be operated with baseband pulses, and can be operated in low magnetic fields. These advances together provide key elements for the realization of scalable integrated quantum circuits.

Progrès au-delà de l’état des connaissances et impact potentiel prévu (y compris l’impact socio-économique et les conséquences sociétales plus larges du projet jusqu’à présent)

This project has contributed to work that advanced the state-of-the-art in numbers of quantum dots operated and has led to the realization of the hopping spin qubit.

2402.18382 (arxiv.org)