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 ... 
LaserBased Imaging of Novel Charge Density Wave and Superconducting Materials
(University of Waterloo, 20210602)The following thesis presents experimental study of two crystalline materials which show correlated electron phases. The first material 1TTaS2 is a twodimensional vanderWaals material. This family of materials ... 
Lasercooled Atomic Ensembles in Hollow Optical Fibers
(University of Waterloo, 20210506)This thesis explores hollowcore fibres as a platform for quantum optics experiments with lasercooled atomic ensembles. The nondiffracting, tightlyconfined guided modes of these fibers grant us a ~µmwide onedimensional ... 
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. ... 
Lateuniverse signals in the microwave sky: extragalactic dust, electrons, and other baryonic effects
(University of Waterloo, 20210607)This thesis collects much of the work I have done over the last four years as a PhD student. It has two focuses. Part 1 discusses gravitational radiation emitted from two maximally charged black holes in EinsteinMaxwelldilaton ... 
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 and Optimization Techniques for Trappedion Quantum Simulators
(University of Waterloo, 20210831)In recent years, quantum simulators have been the focus of intense research due to their potential in unraveling the inner workings of complex quantum systems. The exponential scaling of the Hilbert space of quantum systems ... 
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 ... 
Magnetotransport in Transition Metal Dichalcogenide Semimetals
(University of Waterloo, 20210602)In this thesis, we study the large magnetoresistance in MoTe2, and nonlinear anomalous Hall effect in MoTe2 and WTe2. Thin flakes cleaved from layered single crystals exhibit high mobility, and semimetals show nearly ... 
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 ...