Browsing Physics and Astronomy by Title
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LargeScale Filaments From Weak Lensing
(University of Waterloo, 20151001)In the context of nonlinear structure formation, a web of dark filaments are expected to intersect the high density regions of the universe, where groups and clusters of galaxies will be forming. In this work we have ... 
Laserinitiated Coulomb explosion imaging of small molecules
(University of Waterloo, 20080902)Momentum vectors of fragment ions produced by the Coulomb explosion of CO2z+ (z = 3  6) and CS2z+ (z = 3  13) in an intense laser field (~50 fs, 1 x 1015 W/cm2) are determined by the triple coincidence imaging technique. ... 
Liquid Crystal State NMR Quantum Computing  Characterization, Control and Certification
(University of Waterloo, 20130830)Quantum computers offer the possibility of solving some problems more efficiently than their classical counterparts. The current forerunner in the experimental demonstration of quantum algorithms is Nuclear Magnetic Resonance ... 
Local Group Analogues
(University of Waterloo, 20120927)The abundance of satellite galaxies is a critical smallscale test of the standard cosmological model. From comparing the predictions of structure formation in simulations with observations of Local Group dwarf galaxies ... 
Loop Optimization of Tensor Network Renormalization: Algorithms and Applications
(University of Waterloo, 20190522)Loop optimization for tensor network renormalization (loopTNR) is a realspace renormalization group algorithm suitable for studying 1+1D critical systems. While the original proposal by Yang et al. focused on classical ... 
The Low Temperature Magnetic Relaxation of Dy₂Ti₂O₇
(University of Waterloo, 20120926)The recent formulation of the monopole picture of spin ice[1, 2, 3], has lead to several studies of the signatures of monopole excitations[2, 4], as well as studies of the motion of magnetic monopoles[5, 6, 7]. In this ... 
Lowtemperature characterization of dielectric loss at microwave frequencies in aluminum oxide
(University of Waterloo, 20150409)Superconducting quantum devices have gained increasing interest over the past 15 years because of their role as promising candidates for implementing a largescale quantum computer and as ultrasensitive detectors. ... 
Machine Learning Topological Defects of Liquid Crystals in Two Dimensions
(University of Waterloo, 20190826)Over the recent few years, condensed matter physics has keenly been testing out the compelling techniques from the toolbox of machine learning. Order parameters, phase transitions, and other thermodynamic quantities have ... 
Magnetic Ordering of Dipolar Spin Ice in Moderate [111] Field
(University of Waterloo, 20160908)This thesis explores the low temperature physics of the macroscopically degenerate system of dipolar spin ice in moderate fields applied along the [111] cubic axis. While most applications of field generically lift the ... 
Materials physics of halfmetallic magnetic oxide films by Pulsed Laser Deposition: Controlling the crystal structure and nearsurface properties of Sr2FeMoO6 and CrO2 films
(University of Waterloo, 20090123)The idea of halfmetallic ferromagnets was first introduced by de Groot et al. in 1983 based on their calculations. The density of state at the Fermi level for halfmetallic ferromagnet is completely polarized, meaning ... 
Maximal cell density predictions for compressible polymer foams
(Elsevier, 20121205)Thermodynamic upper bounds for polymer foam cell densities are predicted using compressible selfconsistent field theory. It is found that the incompressible limit always gives the highest, and therefore ultimate, upper ... 
MeanField Theory of Collective Behavior of Quantum Dipolar Rotors
(University of Waterloo, 20210208)Motivated by the recent experimental measurements of the dielectric property of confined quantum dipolar molecules, the orientational dipolar ordering transition is investigated in the quantum generalization of the quantum ... 
Measuring Entanglement Entropy in Valence Bond Quantum Monte Carlo Simulations
(University of Waterloo, 20101208)In this thesis we examine methods for measuring entanglement entropy in spin1/2 Heisenberg systems using quantum Monte Carlo in the valence bond basis. We begin by presenting the quantum Monte Carlo techniques used in ... 
Measuring NonMarkovianity of Noise in the Cenrtal Spin System
(University of Waterloo, 20190524)In this thesis, we explore nonMarkovian noise in the central spin system due to the coupling between the central spin and the environment. We use a solid state nuclear magnetic resonance system to do the experiment since ... 
Measuring the Environmental Dependence of Galaxy Haloes with Weak Lensing
(University of Waterloo, 20130904)We investigate the uses of gravitational lensing for analysing the dark matter haloes around galaxies, comparing galaxies within groups and clusters to those in the field. We consider two cases: when only photometric ... 
Measuring Trapped Ion Qudits
(University of Waterloo, 20190926)Quantum information has typically focused on using 2level qubits to perform simulation and computation. We propose to expand the number of levels for computation using qudits, where \(d>2\). Doing so could be a viable ... 
MembraneDisrupting Activity of Antimicrobial Peptides and the Electrostatic Bending of Membranes
(University of Waterloo, 20100521)Antimicrobial peptides (AMPs) are not only fast microbekilling molecules deployed in the host defense of living organisms but also offer valuable lessons for developing new therapeutic agents. While the mode of action of ... 
Messier 87: A Laboratory for Exploring AGN Variability using the Event Horizon Telescope
(University of Waterloo, 20200917)At a distance of 50 million light years at the heart of the Virgo cluster, lies the giant elliptical galaxy Messier 87. This galaxy has at its center a brilliant relativistic jet, observable at all wavelengths, and at the ... 
Methods for parallel quantum circuit synthesis, faulttolerant quantum RAM, and quantum state tomography
(University of Waterloo, 20190118)The pace of innovation in quantum information science has recently exploded due to the hope that a quantum computer will be able to solve a multitude of problems that are intractable using classical hardware. Current quantum ... 
A Minimal Model for the Hydrophobic and Hydrogen Bonding Effects on Secondary and Tertiary Structure Formation in Proteins
(University of Waterloo, 20090430)A refinement of a minimal model for protein folding originally proposed by Imamura is presented. The representation of the alphahelix has been improved by adding in explicit modelling of the entire peptide unit. A fourhelix ...