Descrizione del progetto
L’elaborazione delle informazioni quantistiche conta sui difetti del diamante
L’elaborazione delle informazioni quantistiche promette di aumentare drasticamente l’efficienza di calcolo di problemi che i computer convenzionali di oggi possono gestire con difficoltà, sfruttando la potenza della meccanica quantistica che codifica gli 0 e gli 1 in qubit. Finanziato nell’ambito del programma Marie Skłodowska-Curie, il progetto COHESiV si propone di sfruttare le notevoli proprietà ottiche, meccaniche e di coerenza di spin di un nuovo qubit, il centro di silicio vacante nel diamante, e fissarlo come componente di rete quantistica centrale per l’implementazione dell’elaborazione di informazioni quantistiche. L’attenzione si concentrerà sull’intrappolamento di due bit quantistici in modo efficiente e sull’archiviazione delle informazioni quantistiche in un registro quantistico a lunga vita.
Obiettivo
The proposal COHESiV aims to establish a novel physical system with ideal properties for the realisation of quantum networks. Quantum information processing (QIP) promises to drastically increase computation abilities and thus unlock key computational problems with wide ranging benefits. An outstanding issue is however the choice of the fundamental building block to implement QIP. COHESiV's goal is to take advantage of the remarkable optical, mechanical and spin coherence properties of a novel quantum bit, the silicon-vacancy centre (SiV) in diamond and establish it as a central component of quantum networks for the implementation of QIP. To do so, COHESiV addresses two crucial operations on which standard quantum algorithms are based: entangling two quantum bits efficiently and storing quantum information in a long-lived quantum register. COHESiV’s objectives are to 1) Interface the spin of a single SiV with a well-defined vibrational mode (phonon) of a mechanical resonator 2) Demonstrate phonon-mediated entanglement between two SiV spins 3) Take advantage of long-lived neighbouring nuclear spins to store and retrieve a quantum state encoded in the SiV spin. Owing to the fact that the strong coupling regime between spin and phonon will be attainable with current mechanical resonators thanks to the remarkably large strain susceptibility of the SiV spin, COHESiV will also aim to open the new field of quantum acousto-dynamics, analogous to quantum electrodynamics, where phonons replace photons. Those objectives will be achieved by combining the expertise of the researcher on the physics of the SiV centre with the state-of-the-art design and fabrication of diamond nanostructures of the outgoing phase partner and the breakthroughs in QIP with a comparable physical system at the host institution.
Campo scientifico
Parole chiave
Programma(i)
Argomento(i)
Meccanismo di finanziamento
MSCA-IF - Marie Skłodowska-Curie Individual Fellowships (IF)Coordinatore
2628 CN Delft
Paesi Bassi