Browsing Physics and Astronomy by Supervisor "Cory, David"
Now showing items 1-15 of 15
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Above Bandgap Hyperpolarization Mechanism in Isotopically Purified Silicon and Optimal Bayesian Experiment Design for $T_1$ Estimation
(University of Waterloo, 2018-05-24)This thesis is concerned with the mechanism underlying the above bandgap illumination Dynamic Nuclear Polarization (DNP) of phosphorus donors in isotopically purified silicon-28. Two proposed DNP models are introduced and ... -
Closed-loop control system and hardware-aware compilation protocols for quantum simulation with neutral atoms in optical trap arrays
(University of Waterloo, 2023-09-25)Quantum materials offer tremendous potential for advancing electronic devices beyond traditional semiconductor-based technologies. Understanding the dynamics of these materials requires the use of quantum simulators. Quantum ... -
Collective Dynamics in NMR and Quantum Noise
(University of Waterloo, 2016-10-17)We introduced an open quantum system model to describe the statistical fluctuations of a spin ensemble in NMR. The model considers an ensemble measurement where the detection coil does not distinguish spins, and accounts ... -
Collective Spin-Cavity Ensembles and the Protection of Higher-dimensional Quantum Information
(University of Waterloo, 2022-09-28)The development of devices leveraging their quantum nature to outperform classical analogues has been an ongoing effort for many decades now. In this thesis we investigate two facets related to this effort, albeit at ... -
Dynamics of Quantum Information of the Central Spin Problem
(University of Waterloo, 2018-01-17)Environmental effects on the evolution of a spin system in the context of the central spin problem, have been studied for more than 60 years. With the growing complexity of quantum information processors there is a new ... -
Engineering Effective Hamiltonians for Magnetic Resonance
(University of Waterloo, 2019-07-22)Effective Hamiltonian engineering is a powerful technique that utilises time-dependent perturbation theory to suppress or enhance certain effects that arise from otherwise weak Hamiltonian terms, when an experimenter ... -
Field-Sweep Control in Magnetic Resonance and k-space Analysis
(University of Waterloo, 2019-10-30)In a general magnetic resonance experiment, resonant radiofrequency or microwave fields are applied to an ensemble of electron or nuclear spins to determine their magnetic interactions with their local environment. These ... -
Nuclear Spin Dynamics Under Above-Bandgap Optical Pumping in Silicon
(University of Waterloo, 2021-02-26)Phosphorus defects in silicon have been proposed as candidates for quantum information and quantum sensing applications, with proposals utilizing both the donor electron spin as well as the 31P nuclear spin. Initialization ... -
Probing Surface Spin Interaction Dynamics using Nitrogen-Vacancy Center Quantum Sensors with High-Fidelity State-Selective Transition Control
(University of Waterloo, 2017-11-21)As a demand from developing nanotechnology and quantum information technology based on mesoscopic material, quantum sensors with better spatial resolution and sensitivity are required. However, few material meets the ... -
Quantum Information Enabled Neutron Interferometry
(University of Waterloo, 2017-06-12)Neutron interferometry with its ability to encode and extract information provides a test bed for quantum mechanics and precise measurement of physical quantities of significant importance in physics. However, this ... -
Resources Needed for Entangling Two Qubits through an Intermediate Mesoscopic System
(University of Waterloo, 2019-09-23)One of the main challenges in designing large scale quantum processors is connecting separated qubits. In this thesis, we explore new opportunities that mesoscopic many-body systems provide for creating quantum correlation ... -
Simulation and mitigation of noise in Rydberg atom systems using quantum optimal control
(University of Waterloo, 2021-02-18)We design a quantum optimal control protocol to mitigate the noise in Rydberg atom systems. -
Some Results on Qudit Quantum Error-Correction
(University of Waterloo, 2020-01-30)Quantum computing’s seemingly perpetual promise of nearness still has a few hurdles to surmount before it can become a reality. Among these hurdles is that of protection of information from random errors. A potential ... -
Structured Beams as Quantum Probes
(University of Waterloo, 2018-06-15)This thesis describes several projects under the common theme of generating and manipulating the spatial quantum phase structure of matter and electromagnetic waves. Experiments dealing with the following topics are ... -
Subspace Control of Nitrogen Vacancy centers at Zero Field
(University of Waterloo, 2020-01-24)Nitrogen-Vacancy centers negatively charged (NV-) are spin-1 objects in diamond. In the absence of a magnetic field, two of its levels are degenerate, which is why a field is often used to lift the degeneracy and allow ...