Browsing Physics and Astronomy by Title
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Exact results in QFT: Minimal Areas and Maximal Couplings
(University of Waterloo, 20160914)This thesis is devoted to a twopronged study of nonperturbative quantum field theory. In Part I we focus on the fourdimensional super conformal $\mathcal{N}=4$ Yang Mills theory. We compute smooth Wilson loops and ... 
Exact Results in Supersymmetric Gauge Theory
(University of Waterloo, 20160830)Exact results are a key component for understanding any physical theory. Unfortunately in the context of quantum field theory (QFT) they are in general impossible to obtain, and we need some sort of approximations. However ... 
Exact Solutions and Black Hole Stability in Higher Dimensional Supergravity Theories
(University of Waterloo, 20120620)This thesis examines exact solutions to gauged and ungauged supergravity theories in spacetime dimensions D⩾5 as well as various instabilities of such solutions. I begin by using two solution generating techniques for ... 
Experimental and theoretical demonstration of the feasibility of global quantum cryptography using satellites
(University of Waterloo, 20141015)Information security is a growing concern in our modern world, where almost everything can be done online. To protect security, classical encryption protocols, such as RSA, are used. These encryption protocols are almost ... 
Experimental and theoretical investigations of radiofrequency and optical trapping potentials for atomic ions
(University of Waterloo, 20201008)Over the years, trapped ion have emerged as one of the premier candidates for universal quantum simulation due to its long coherence time, low initialization and detection errors, robust highfidelity gate sets and fully ... 
Experimental Investigation into Spatial Quantum Optical Properties for Satellite Targeting through the Turbulent Atmosphere
(University of Waterloo, 20130904)A major field of research at the current time is that of implementing Quantum Key Distribution over large distances using satellites. If this protocol works with this technology, it will have huge implications on future ... 
An experimental investigation of the spin dynamics of dipolar spin ice
(University of Waterloo, 20120427)The low temperature spin dynamics of the canonical dipolar spin ice materials is examined. The ac susceptibility of dipolar spin ice materials Ho2Ti2O7 and Dy2Ti2O7 is measured to lower temperatures and frequencies than ... 
Experimental prospects for detecting the quantum nature of spacetime
(University of Waterloo, 20170921)This thesis is concerned with advancing the confrontation between relativistic quantum information (RQI) and experiment. We investigate the lessons that some presentday experiments can teach us about the relationship ... 
Experimental quantum communication in demanding regimes
(University of Waterloo, 20110802)Quantum communication promises to outperform its classical counterparts and enable protocols previously impossible. Specifically, quantum key distribution (QKD) allows a cryptographic key to be shared between distant parties ... 
Experimental Quantum Information Processing with Photons
(University of Waterloo, 20130830)This thesis describes experimental generation, manipulation and measurement of quantum information using photon pairs emitted in bulk crystals. Multiphoton sources engineered during the course of this thesis have proven ... 
Experimental search for longrange forces in neutron scattering via a gravitational spectrometer
(American Physical Society, 20140409)In this work we introduce a method of measuring lowenergy scattering cross section with a gravitational spectrometer. In this method we add atoms (i.e., He) to the gravitational spectrometer filled with a target gas of ... 
Experimentally Testable Noncontextuality Inequalities Via FourierMotzkin Elimination
(University of Waterloo, 20150929)Generalized noncontextuality as defined by Spekkens is an attempt to make precise the distinction between classical and quantum theories. It is a restriction on models used to reproduce the predictions of quantum mechanics. ... 
Experiments with Generalized Quantum Measurements and Entangled Photon Pairs
(University of Waterloo, 20091102)This thesis describes a linearoptical device for performing generalized quantum measurements on quantum bits (qubits) encoded in photon polarization, the implementation of said device, and its use in two diff erent but ... 
Exploration of HigherOrder Quantum Interference Landscapes
(University of Waterloo, 20170831)Earth, Moon and Sun unite when they star together in the threebody problem, whose intricate plot still baffles us today. For some reason, the factorization of the twobody problem into two onebody problems does not, in ... 
An Exploration of Locality, Conservation Laws, and Spin
(University of Waterloo, 20170123)Conservation rules are central to our understanding of the physical world, they place re strictions on how particles can move and dictate what can occur during an interaction. However, it is often taken for granted how a ... 
Explorations in black hole chemistry and higher curvature gravity
(University of Waterloo, 20180808)This thesis has two goals. The primary goal is to communicate two results within the framework of black hole chemistry, while the secondary goal is concerned with higher curvature theories of gravity. Superentropic ... 
Explorations in machine learning for interacting manybody systems.
(University of Waterloo, 20200903)Most interacting manybody systems in physics are not analytically solvable. Instead, numerical methods are needed for the study of these complex and highdimensional problems. At present, there are many interesting problems ... 
Explorations in the Conformal Bootstrap
(University of Waterloo, 20170719)We investigate properties of various conformally invariant quantum systems, especially from the point of view of the conformal bootstrap. First, we study twist line defects in threedimensional conformal field theories. ... 
Explorations of Black Hole Thermodynamics in de Sitter Spacetime
(University of Waterloo, 20190123)In this thesis I map out two approaches that are foundational to studying black hole thermodynamics in de Sitter spacetime. The first is to understand the "thermodynamic volume" of cosmological horizons in isolation. ... 
Exploring new routes to decoherencefree quantum computing; and quantum thermodynamics for fermions
(University of Waterloo, 20200123)This thesis has two parts; the first part is a contribution to the research field of quantum measurement in quantum optics while the second part focuses on quantum thermodynamics for fermionic systems. The aim of the ...