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A quantum computer based on electron spins in carbon nanomaterials

Ziel

I will create a two-qubit universal quantum computer based on electron spins a carbon nanotube. Nanotubes are outstanding host material for spin qubits, because they allow hyperfine decoherence to be completely eliminated. Very recently, I demonstrated the first single qubit in a nanotube, using electric fields combined with a bend in the nanotube to coherently control an electron's spin. This project will realize the additional elements for a computer: high-fidelity qubit readout, a two-qubit gate, and long-lived quantum memory.

The objectives are threefold. First, I will perform single-shot readout by incorporating radio-frequency single-electron-transistors into a qubit device. Using established spin-to-charge conversion techniques, this will allow independent readout of multiple qubits. Second, I will use the exchange coupling between adjacent nanotube quantum dots to implement a universal two-qubit gate. Finally, I will create a long-lived quantum memory based on spin-active endohedral fullerene molecules chemically attached to the nanotube. These molecules have already shown outstanding quantum coherence properties in ensembles, which I will exploit for devices for the first time. The end goal is a device capable of implementing arbitrary two-bit quantum algorithms, opening the way to a scalable quantum computer based on carbon electronics.

Aufforderung zur Vorschlagseinreichung

FP7-PEOPLE-2012-CIG
Andere Projekte für diesen Aufruf anzeigen

Koordinator

THE CHANCELLOR, MASTERS AND SCHOLARS OF THE UNIVERSITY OF OXFORD
EU-Beitrag
€ 100 000,00
Adresse
WELLINGTON SQUARE UNIVERSITY OFFICES
OX1 2JD Oxford
Vereinigtes Königreich

Auf der Karte ansehen

Region
South East (England) Berkshire, Buckinghamshire and Oxfordshire Oxfordshire
Aktivitätstyp
Higher or Secondary Education Establishments
Kontakt Verwaltung
Gill Wells (Ms.)
Links
Gesamtkosten
Keine Daten