Browsing Theses by Title
Now showing items 11766-11785 of 15522
-
Quantum Turing Machines and Quantum Prover-Verifier Interactions
(University of Waterloo, 2020-07-31)We present results on quantum Turing machines and on prover-verifier interactions. In our work on quantum Turing machines, we continue the line of research opened by Yao (1993), who proved that quantum Turing machines ... -
Quantum Walks and Pretty Good State transfer on Paths
(University of Waterloo, 2019-08-23)Quantum computing is believed to provide many advantages over traditional computing, particularly considering the speed at which computations can be performed. One of the challenges that needs to be resolved in order to ... -
Quantum Walks on Oriented Graphs
(University of Waterloo, 2019-01-11)This thesis extends results about periodicity and perfect state transfer to oriented graphs. We prove that if a vertex a is periodic, then elements of the eigenvalue support lie in Z √∆ for some squarefree negative ... -
Quantum Walks on Strongly Regular Graphs
(University of Waterloo, 2010-08-30)This thesis studies the transition matrix of a quantum walk on strongly regular graphs. It is proposed by Emms, Hancock, Severini and Wilson in 2006, that the spectrum of a matrix based on the amplitudes of walks in the ... -
Quantum-Classical Correspondence and Entanglement in Periodically Driven Spin Systems
(University of Waterloo, 2019-08-09)This dissertation sets out to examine some fundamental open questions in quantum physics regarding quantum-classical correspondence in regular versus chaotic systems. Specifically, we study these questions using approaches ... -
Quasi-Hopf Symmetry in Loop Quantum Gravity with Cosmological constant and Spinfoams with timelike surfaces
(University of Waterloo, 2018-09-20)In this thesis we study two separate problems concerning improvements to the Loop quantum gravity and spinfoam approach to quantum gravity. In the first part we address the question about the origin of quantum group ... -
Quasi-Static Approximation for Numerical Computation of Plasmon Eigenfrequencies in Nanoparticles
(University of Waterloo, 2014-08-28)General physical properties of electrostatic (plasmon) resonances in nanoparticles are presented. Direct calculation of the resonance values of the permittivity of nanoparticles, and subsequently their resonance frequencies, ... -
Quasi-Static, Cyclic, and Fracture Characteristics of Plasma Transferred Wire Arc (PTWA) Thermal Sprayed AlSi Cylinder Bores
(University of Waterloo, 2022-05-12)This study examines the microstructure and mechanical properties of plasma transferred wire arc (PTWA) coating of typical alloyed steel, deposited on diecast aluminum alloy cylinder bores. The coating surface and microstructure ... -
A Quasilocal Hamiltonian for Gravity with Classical and Quantum Applications
(University of Waterloo, 2000)I modify the quasilocal energy formalism of Brown and York into a purely Hamiltonian form. As part of the reformulation, I remove their restriction that the time evolution of the boundary of the spacetime be orthogonal ... -
Quaternary Geomorphology of the Quebec North Shore, Godbout to Sept-Iles
(University of Waterloo, 2016-09-27)This report presents a summary of the physical properties of surficial deposits, evolution of the landscape and economic aspects of the materials. Surficial geology maps of the Sept-Iles and Cap Chat map sheets, at a scale ... -
Quaternary Stratigraphy and Glacial Dynamics from a Core Region of the Laurentide Ice Sheet, Aberdeen Lake, Kivalliq, Nunavut
(University of Waterloo, 2015-01-16)Central Kivalliq, mainland Nunavut west of Hudson Bay and north of Manitoba, was a long-standing core region of the Laurentide Ice Sheet (LIS). The location of the Keewatin Ice Divide (KID), a major ice spreading region ... -
Quaternion Algebras and Quadratic Forms
(University of Waterloo, 2008-05-12)The main goal of this Masters' thesis is to explore isomorphism types of quaternion algebras using the theory of quadratic forms, number theory and algebra. I would also present ways to characterize quaternion algebras, ... -
Quaternions and Quantum Theory
(University of Waterloo, 2011-08-30)The orthodox formulation of quantum theory invokes the mathematical apparatus of complex Hilbert space. In this thesis, we consider a quaternionic quantum formalism for the description of quantum states, quantum channels, ... -
Queen of the Academy: Academic Drag as Pedagogy and Praxis
(University of Waterloo, 2022-11-22)Direct stories from and pedagogical representations of equity-denied and oppressed bodies remain largely missing from and kept out of the academy. And scholarship and scholarly gate-keepers across the academy – and especially ... -
The Queer Eternal September: LGBTQ Identity on the Early Internet and Web
(University of Waterloo, 2020-09-21)This dissertation examines the expression of queer identity and community on the early internet and web, and suggests a methodology for working with archived internet and web sources when exploring the history of marginalized ... -
Quench Sensitivity of 6xxx Aluminum Alloys
(University of Waterloo, 2016-05-16)The use of AA6xxx series alloys continues to grow with the increasing demand for more fuel efficient vehicles. AA6xxx series alloys are commonly used in automotive applications because of their extrudability and good ... -
Quenching the Spirit: The Transformation of Religious Identity and Experience in Three Canadian Pentecostal Churches
(University of Waterloo, 2012-03-09)According to Census Canada, after eight decades of consistent growth Canadian Pentecostal affiliation reached an all-time high of 436,435 individuals in 1991. A decade later, the results of the 2001 Canadian census revealed ... -
Query Answering over Functional Dependency Repairs
(University of Waterloo, 2013-09-23)Inconsistency often arises in real-world databases and, as a result, critical queries over dirty data may lead users to make ill-informed decisions. Functional dependencies (FDs) can be used to specify intended semantics ... -
Query Evaluation in the Presence of Fine-grained Access Control
(University of Waterloo, 2008-05-20)Access controls are mechanisms to enhance security by protecting data from unauthorized accesses. In contrast to traditional access controls that grant access rights at the granularity of the whole tables or views, ... -
Query Interactions in Database Systems
(University of Waterloo, 2013-01-08)The typical workload in a database system consists of a mix of multiple queries of different types, running concurrently and interacting with each other. The same query may have different performance in different mixes. ...