Browsing Physics and Astronomy by Title
Now showing items 503-522 of 767
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Probing universality with entanglement entropy via quantum Monte Carlo
(University of Waterloo, 2019-08-30)Our understanding of physical phenomena hinges on finding universal core mechanisms that unite them. The concept of universality is deeply ingrained in the study of quantum many-body systems. At zero temperature, microscopically ... -
A Process Model of Non-Relativistic Quantum Mechanics
(University of Waterloo, 2014-08-25)A process model of quantum mechanics utilizes a combinatorial game to generate a discrete and finite causal space upon which can be defined a self-consistent quantum mechanics. An emergent space-time and continuous wave ... -
Production of Highly Monodisperse Polystyrene by Evaporative Purification
(University of Waterloo, 2017-12-14)In this thesis, I will demonstrate a simple evaporative purification method to separate a polydisperse polystyrene with small molecular weight into highly monodisperse components (N-mers) ranging from 3-mers to 13-mers. ... -
Programmable Individual Addressing and Floquet Hamiltonian Dynamics in a Trapped Ion Quantum Processor
(University of Waterloo, 2023-09-26)Trapped ions have been gaining traction as a platform for quantum information processing (QIP) in both academia and industry over the last decade. Their long coherence time, high fidelity gate operations, and built-in ... -
Properties of Carbon Nanomaterials Produced by Ultrashort Pulsed Laser Irradiation
(University of Waterloo, 2012-08-29)Two synthesis pathways were employed throughout this work to create a variety of unique carbon materials. The first of these routes involves the photo-dissociation of liquids by direct irradiation with ultrashort laser ... -
Proposed Methods For Measuring and Interpreting Mueller Matrices in In Vivo Retinal Polarimetry
(University of Waterloo, 2020-12-23)Mueller matrix polarimetry is the examination of how a sample transforms the polarization state of light. This requires probing the sample with input light of a variety of generated polarization states and analyzing the ... -
The PROSPECT reactor antineutrino experiment
(Elsevier, 2019-04-01)The Precision Reactor Oscillation and Spectrum Experiment, PROSPECT, is designed to make both a precise measurement of the antineutrino spectrum from a highly-enriched uranium reactor and to probe eV-scale sterile neutrinos ... -
A Purity Benchmarking Study of Superconducting Single-qubit Fluctuations
(University of Waterloo, 2023-07-31)Quantum processes are susceptible to errors. Over the years, numerous noise models, such as two-level system noise and flux noise, have been proposed by physicists to describe the mechanisms behind the error sources ... -
Quantum Algorithmic Techniques for Fault-Tolerant Quantum Computers
(University of Waterloo, 2019-10-01)Quantum computers have the potential to push the limits of computation in areas such as quantum chemistry, cryptography, optimization, and machine learning. Even though many quantum algorithms show asymptotic improvement ... -
Quantum Algorithms for Interpolation and Sampling
(University of Waterloo, 2023-08-15)Gibbs sampling from continuous real-valued functions is a challenging problem of interest in machine learning. Here we leverage quantum Fourier transforms to build a quantum algorithm for this task when the function is ... -
The quantum and the gravity: Newtonian and Cosmological applications
(University of Waterloo, 2018-07-18)The gravitational decoherence field studies the suppression of coherence in quantum systems caused by effects rooted in the gravitational interaction. This models are not just important to yield interesting ideas about the ... -
Quantum Annealing: Research and Applications
(University of Waterloo, 2021-09-28)This thesis studies several aspects of the quantum annealing (QA) computing approach. Quantum annealers' primary objective is to solve hard computational optimization problems. Because these optimization problems are in ... -
Quantum Aspects of Black Holes: From Microstates to Echoes and Somewhere In-Between
(University of Waterloo, 2023-05-23)In this thesis we explore quantum aspects of black holes from a variety of perspectives. In part I of this thesis we are motivated by the black hole information paradox to explore the idea of gravitational wave echoes ... -
Quantum Black Holes in the Sky
(University of Waterloo, 2020-09-30)Black Holes are possibly the most enigmatic objects in our Universe. From their detection in gravitational waves upon their mergers, to their snapshot eating at the centres of galaxies, black hole astrophysics has undergone ... -
Quantum Blind Data Compression and Structure of Quantum Operations Approximately Preserving Quantum States
(University of Waterloo, 2021-07-29)In this thesis, we investigate a variation of quantum information processing tasks, blind data compression, and we analyze an approximation of a structure of a set of quantum states closely related to the task, which is ... -
Quantum Computational Particle Physics: Algorithms, Resource Estimation, and Model-Building
(University of Waterloo, 2022-03-24)Quantum simulation is one of the most promising applications of quantum computers. It is anticipated that quantum simulation will accelerate scientific discovery, and advance our understanding of nature. One area that ... -
Quantum correlations in a noisy neutron interferometer
(American Physical Society, 2014-09-15)We investigate quantum coherences in the presence of noise by entangling the spin and path degrees of freedom of the output neutron beam from a noisy three-blade perfect crystal neutron interferometer. We find that in the ... -
Quantum critical responses via holographic models and conformal perturbation theory
(University of Waterloo, 2017-06-15)We investigate response functions near quantum critical points, allowing for finite temperature and a mild deformation by a relevant scalar. When the quantum critical point is described by a conformal field theory, we use ... -
Quantum dot devices in silicon and dopant-free GaAs/AlGaAs heterostructures
(University of Waterloo, 2021-01-29)Single spin quantum dot qubits in silicon are a promising candidate for a scalable quantum processor due to their long coherence times, compact size, and ease of integration into existing fabrication technologies. Realizing ... -
Quantum Gates and Decoupling in Qubits with Fixed Transverse Coupling
(University of Waterloo, 2017-05-25)Among all the quantum computer candidates, the superconducting system is one of the most convincing platforms due to its strong couplings and scalability. To be more specific, this thesis focuses on the superconducting ...