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asaad serwan - electrical control and quantum chaos with a high-spin nucleus in silicon

Electrical Control and Quantum Chaos with a High-Spin Nucleus in Silicon




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Dettagli

Genere:Libro
Lingua: Inglese
Editore:

Springer

Pubblicazione: 10/2021
Edizione: 1st ed. 2021





Trama

Nuclear spins are highly coherent quantum objects that were featured in early ideas and demonstrations of quantum information processing. In silicon, the high-fidelity coherent control of a single phosphorus (31-P) nuclear spin I=1/2 has demonstrated record-breaking coherence times, entanglement, and weak measurements. In this thesis, we demonstrate the coherent quantum control of a single antimony (123-Sb) donor atom, whose higher nuclear spin I = 7/2 corresponds to eight nuclear spin states. However, rather than conventional nuclear magnetic resonance (NMR), we employ nuclear electric resonance (NER) to drive nuclear spin transitions using localized electric fields produced within a silicon nanoelectronic device. This method exploits an idea first proposed in 1961 but never realized experimentally with a single nucleus, nor in a non-polar crystal such as silicon. We then present a realistic proposal to construct a chaotic driven top from the nuclear spin of 123-Sb. Signatures of chaos are expected to arise for experimentally realizable parameters of the system, allowing the study of the relation between quantum decoherence and classical chaos, and the observation of dynamical tunneling. These results show that high-spin quadrupolar nuclei could be deployed as chaotic models, strain sensors, hybrid spin-mechanical quantum systems, and quantum-computing elements using all-electrical controls.




Sommario

Introduction.- High-dimensional Spins.- Theory of Donors in Silicon.-  Experimental Setup.- 123-Sb Donor Device Characterization.




Autore

Serwan Asaad is a postdoctoral research fellow studying nonlocal physics and nonabelian statistics in Charlie Marcus’ group at the Niels Bohr Institute, University of Copenhagen. He completed his PhD at the University of New South Wales (UNSW) in Sydney, where he worked in the group of Andrea Morello on high-spin nuclei in silicon. He received the Malcolm Chaikin award for this work.










Altre Informazioni

ISBN:

9783030834722

Condizione: Nuovo
Collana: Springer Theses
Dimensioni: 235 x 155 mm Ø 494 gr
Formato: Copertina rigida
Illustration Notes:XVII, 198 p. 70 illus., 67 illus. in color.
Pagine Arabe: 198
Pagine Romane: xvii


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