Browsing Physics and Astronomy by Title
Now showing items 685-704 of 768
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Thermodynamics and Universality in Anisotropic Higher Curvature Spacetimes
(University of Waterloo, 2016-06-16)In my thesis, I describe new results in the thermodynamics of black holes in two gravitational scenarios: spacetime anisotropy and higher curvature gravity. I focus on classifying the critical point of "Large Black Hole / ... -
Thickness- and Symmetry-Induced Electronic Transport Properties of Semimetallic Transition Metal Dichalcogenides
(University of Waterloo, 2023-01-12)This thesis presents experimental study of how thickness and symmetry would impact the electron transport properties of MoTe₂ and WTe₂, two members of the transition metal dichalcogenide family. In the first experiment, ... -
Thinking outside the box; fast error estimation for next generation galaxy surveys
(University of Waterloo, 2024-01-29)Since the discovery of the accelerated expansion of the universe in the late 90s, the flat $\Lambda$CDM model has reigned as the best explanation for the cosmological phenomena we have observed. In spite of over two decades ... -
Three Phase-Grating Moire Neutron Interferometer for Large Interferometer Area Applications
(American Physical Society, 2018-03-12)We demonstrate a three phase-grating moire neutron interferometer in a highly intense neutron beam as a robust candidate for large area interferometry applications and for the characterization of materials. This novel ... -
Three-dimensional simulations of sound propagation in a trumpet with accurate mouthpiece shank geometry
(arXiv, 2016-11-01)The length and bore geometry of musical instruments directly influences the quality of sound that can be produced. In brass instruments, nonlinear effects from finite-amplitude wave propagation can lead to wave distortion ... -
Three-Photon Excitation of Rubidium Atoms to Rydberg States in a Room Temperature Vapor Cell
(University of Waterloo, 2016-08-29)This thesis presents a method for calculating the absorption of diode lasers in one-photon, two-photon and (Doppler-free) three-photon excitation configurations. The specific three-photon system studied is atomic Rb, 5s1/2 ... -
Tilt grain boundaries in a diblock copolymer ordered nanocomposite lamellar phase
(AIP publishing, 2010-10-08)A hybrid self-consistent field theory/density functional theory method is applied to predict tilt(kink) grain boundary structures between lamellar domains of a symmetric diblock copolymer with added spherical nanoparticles. ... -
Time-Resolved Femtosecond Laser Spectroscopic Study of the Reaction
(University of Waterloo, 2007-09-11)Being currently the second and potentially becoming the first cause of death in North America, cancer has been the focus of researchers from various areas of science. Chemotherapy is one of the leading treatment options ... -
Tolerable Experimental Imperfections for a Quadrupole Blade Ion Trap and Practical Qudit Gates with Trapped Ions
(University of Waterloo, 2019-09-26)Trapped ions are one of the leading technologies in quantum information technology due to their long coherence time and low noise presence. For trapping ions, there are a plethora of ion trap architectures. Among them ... -
Tools for the Security Analysis of Quantum Key Distribution in Infinite Dimensions
(University of Waterloo, 2021-08-12)We develop a method to connect the infinite-dimensional description of optical continuous-variable quantum key distribution (QKD) protocols to a finite-dimensional formulation. The secure key rates of the optical QKD ... -
Topics in Fault-Tolerant Quantum Computation
(University of Waterloo, 2017-01-12)This thesis contains the results of research projects broadly related to the pursuit of universal fault-tolerant quantum computation. We are interested in questions such as which resources are required to achieve a quantum ... -
Topics in weak gravitational lensing
(University of Waterloo, 2022-01-25)In this thesis, various topics pertaining to weak gravitational lensing and its application to cosmology and galaxy evolution are explored. The first chapter is the introduction which contains all of the background ... -
Topics on the information theoretic limits of quantum information processing and its implementation
(University of Waterloo, 2015-02-24)Recent advances in quantum technologies enabled us to make large quantum states and pushed towards examining quantum theory at the macroscopic level. However observation of quantum e ects at a macroscopic level still ... -
Topological and superconducting properties of Weyl and Dirac metals
(University of Waterloo, 2018-08-30)In this work we explore superconductivity and surface states in topological semimetals. We start from general overview of basic properties of topological semimetals. We review general concepts of Chern insulators, their ... -
Topological aspects of nodal-loop semimetals and the nature of spin-orbit coupling in Lu₂V₂O₇
(University of Waterloo, 2021-09-27)This thesis is presented in two parts: (I) understanding the topological aspects of nodal-loop semimetals in the presence of interactions and (II) exploring the nature of spin-orbit coupling in the pyrochlore oxide Lu₂V₂O₇. ... -
Topological Manipulations of Quantum Field Theories
(University of Waterloo, 2023-07-17)In this thesis we study some topological aspects of Quantum Field Theories (QFTs). In particular, we study the way in which an arbitrary QFT can be separated into “local” and “global” data by means of a “symmetry Topological ... -
Topological methods in quantum gravity
(University of Waterloo, 2005)The main technical problem with background independent approaches to quantum gravity is inapplicability of standard quantum field theory methods. New methods are needed which would be adapted to the basic principles ... -
Topological Order and Universal Properties of Gapped Quantum Systems
(University of Waterloo, 2018-11-15)Phases of gapped quantum liquids are topologically ordered and have very interesting physical features that are completely robust against any local perturbation that do not close the bulk energy gap. These universal ... -
Topological Order in String Liquids and Weyl Semimetals
(University of Waterloo, 2022-08-22)Outside Landau's paradigm of symmetry-breaking orders is the class of topological orders, which cannot be described by a local order parameters. Such orders are generally defined by the presence of a gauge symmetry and ... -
Topological Semimetals
(University of Waterloo, 2012-08-31)This thesis describes two topological phases of matter, the Weyl semimetal and the line node semimetal, that are related to but distinct from topological insulator phases. These new topological phases are semimetallic, ...