Browsing University of Waterloo by Title
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Quantum Reference Frames and The Poincaré Symmetry
(University of Waterloo, 20140919)The concept of a reference frame has been a part of the physical formalism since the early days of physics. The reference frame was always understood as a physical system with respect to which states of other physical ... 
Quantum Rejection Sampling
(University of Waterloo, 20150121)Let H be a finite dimensional Hilbert space and ρ, σ ∈ D(H) be quantum states in H such that S(ρσ) is finite. In this thesis, we consider the following communication task involving two parties Alice and Bob. Suppose ... 
Quantum Snake Walk on Graphs
(University of Waterloo, 20100113)Quantum walks on graphs have been proven to be a useful tool in quantum algorithm construction for various problems. In this thesis we introduce a new type of continuoustime quantum walk on graphs called the quantum snake ... 
Quantum Speedups for Boolean Satisfiability and DerivativeFree Optimization
(University of Waterloo, 20140421)In this thesis, we have considered two important problems, Boolean satisfiability (SAT) and derivative free optimization in the context of large scale quantum computers. In the first part, we survey well known classical ... 
Quantum State Local Distinguishability via Convex Optimization
(University of Waterloo, 20150824)Entanglement and nonlocality play a fundamental role in quantum computing. To understand the interplay between these phenomena, researchers have considered the model of local operations and classical communication, or LOCC ... 
Quantum state purification
(University of Waterloo, 20160829)Quantum state purification is a process in which decoherence is partially reversed by using multiple copies of the input states that have been subject to the same decoherence effect. This thesis focuses on purifying the ... 
Quantum State Transfer in Graphs
(University of Waterloo, 20140813)Let X be a graph, A its adjacency matrix, and t a nonnegative real number. The matrix exp(i t A) determines the evolution in time of a certain quantum system defined on the graph. It represents a continuoustime quantum ... 
Quantum Strategies and Local Operations
(University of Waterloo, 20100106)This thesis is divided into two parts. In Part I we introduce a new formalism for quantum strategies, which specify the actions of one party in any multiparty interaction involving the exchange of multiple quantum messages ... 
Quantum tests of causal structures and nonorthogonal states
(University of Waterloo, 20140613)This thesis details two experimental tests that can be applied to particular quantum states to reveal important information. We begin by discussing the relevant background in quantum information. We introduce qubits and ... 
Quantum Walks on Oriented Graphs
(University of Waterloo, 20190111)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, 20100830)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 ... 
Quantuminformation approach to dynamical diffraction theory
(American Physical Society, 20161208)We present a simplified model for dynamical diffraction of particles through a periodic thick perfect crystal based on repeated application of a coherent beamsplitting unitary at coarsegrained lattice sites. By demanding ... 
A quasiexperimental study of a mandatory calorielabelling policy in restaurants: Impact on use of nutrition information among youth and young adults in Canada
(Elsevier, 20181101)In 2017, Ontario became the first Canadian province to require calorie amounts on menus/menu boards of chain restaurants. The province of British Columbia (BC) implemented a voluntary nutrition information initiative in ... 
QuasiHopf Symmetry in Loop Quantum Gravity with Cosmological constant and Spinfoams with timelike surfaces
(University of Waterloo, 20180920)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 ... 
QuasiMonte Carlo methods, applications in finance and actuarial science
(University of Waterloo, 1998) 
QuasiStatic Approximation for Numerical Computation of Plasmon Eigenfrequencies in Nanoparticles
(University of Waterloo, 20140828)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, ... 
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 ... 
A quasilocal Hamiltonian for gravity with classical and quantum applications
(University of Waterloo, 2000) 
Quaternary Geomorphology of the Quebec North Shore, Godbout to SeptIles
(University of Waterloo, 20160927)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 SeptIles 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, 20150116)Central Kivalliq, mainland Nunavut west of Hudson Bay and north of Manitoba, was a longstanding core region of the Laurentide Ice Sheet (LIS). The location of the Keewatin Ice Divide (KID), a major ice spreading region ...