Quantum information transfer between hole spins and topological states

Projektinformationen

QUIST

ID Finanzhilfevereinbarung: 850641

DOI

10.3030/850641

Projekt abgeschlossen

EK-Unterschriftsdatum 2 Oktober 2019

Startdatum 1 November 2019

Enddatum 31 Oktober 2024

Finanziert unter

• EXCELLENT SCIENCE - European Research Council (ERC)

Gesamtkosten

€ 1 873 285,00

EU-Beitrag

€ 1 873 285,00

Koordiniert durch

TECHNISCHE UNIVERSITEIT DELFT
Netherlands

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

Berichtszeitraum: 2024-05-01 bis 2024-10-31

Zusammenfassung vom Kontext und den Gesamtzielen des Projekts

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.

Arbeit, die ab Beginn des Projekts bis zum Ende des durch den Bericht erfassten Berichtszeitraums geleistet wurde, und die wichtigsten bis dahin erzielten Ergebnisse

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.

Fortschritte, die über den aktuellen Stand der Technik hinausgehen und voraussichtliche potenzielle Auswirkungen (einschließlich der bis dato erzielten sozioökonomischen Auswirkungen und weiter gefassten gesellschaftlichen Auswirkungen des Projekts)

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)