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

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

(Autor)

Buch | Softcover
XVII, 198 Seiten
2022 | 1st ed. 2021
Springer International Publishing (Verlag)
978-3-030-83475-3 (ISBN)
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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.

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.

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

Erscheinungsdatum
Reihe/Serie Springer Theses
Zusatzinfo XVII, 198 p. 70 illus., 67 illus. in color.
Verlagsort Cham
Sprache englisch
Maße 155 x 235 mm
Gewicht 335 g
Themenwelt Naturwissenschaften Physik / Astronomie Atom- / Kern- / Molekularphysik
Schlagworte Coherent control • donor atoms • High-Spin Nucleus • Nuclear Electric Resonance • Nuclear quadrupole interaction • Quantum Chaos • Quantum Physics • Silicon Nanoelectronics • spin physics
ISBN-10 3-030-83475-1 / 3030834751
ISBN-13 978-3-030-83475-3 / 9783030834753
Zustand Neuware
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