Browsing Physics and Astronomy by Title
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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 Excitations in Transport Measurements of Novel Quantum Materials
(University of Waterloo, 20230427)Quantum materials offer rich possibilities for quasiparticles that can revolutionalize our technology. The discovery of novel delocalized magnetic excitations in transport measurements implies that such quasiparticles are ... 
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 ... 
Magnetoconductance due to variablerange hopping in quasitwodimensional systems: Application to PrBa2Cu3O7delta
(American Physical Society, 199801)In this paper, we have developed a theory of magnetoconductance (magnetoresistance) due to variablerange hopping for quasitwodimensional systems. We have included the effect of electric fields on the calculation of the ... 
Magnetotransport experiments in GaAs 2D holes and RFQPC readout in a lateral quantum dot device
(University of Waterloo, 20240216)This thesis presents a set of experiments conducted on GaAs/AlGaAs heterostructures fabricated into Hall bars and a lateral quantum dot device. The Hall bar experiments seek to further the understanding of the complexity ... 
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 Quantum Correlations of Polarization, Spatial Mode, and EnergyTime Entangled Photon Pairs.
(University of Waterloo, 20230907)Optical quantum technologies have found applications in all facets of quantum information. Single photons are actively being researched for quantum computation, communication, and sensing, due to their robustness against ... 
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 ... 
Minimal model for the secondary structures and conformational conversions in proteins
(University of Waterloo, 2005)Better understanding of protein folding process can provide physical insights on the function of proteins and makes it possible to benefit from genetic information accumulated so far. Protein folding process normally ...