Browsing Physics and Astronomy by Title
Now showing items 213-232 of 767
-
An experimental investigation of the spin dynamics of dipolar spin ice
(University of Waterloo, 2012-04-27)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, 2017-09-21)This thesis is concerned with advancing the confrontation between relativistic quantum information (RQI) and experiment. We investigate the lessons that some present-day experiments can teach us about the relationship ... -
Experimental quantum communication in demanding regimes
(University of Waterloo, 2011-08-02)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, 2013-08-30)This thesis describes experimental generation, manipulation and measurement of quantum information using photon pairs emitted in bulk crystals. Multi-photon sources engineered during the course of this thesis have proven ... -
Experimental search for long-range forces in neutron scattering via a gravitational spectrometer
(American Physical Society, 2014-04-09)In this work we introduce a method of measuring low-energy 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 ... -
An experimental study of single hole spin qubit coherence in a GaAs/AlGaAs double quantum dot device
(University of Waterloo, 2024-01-15)This thesis discusses a series of experiments performed on a p-type laterally-gated GaAs/AlGaAs double quantum dot device. The main purpose of these experiments was to explore the potential of a theoretically-predicted ... -
Experimentally Testable Noncontextuality Inequalities Via Fourier-Motzkin Elimination
(University of Waterloo, 2015-09-29)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, 2009-11-02)This thesis describes a linear-optical 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 ... -
An Exploration of Clustering Statistics and Tidal Alignments in the Context of Group Catalogues
(University of Waterloo, 2021-10-04)The use of three-dimensional galaxy surveys and large cosmological simulations of the galaxy distribution has advanced our understanding of large-scale structure over the last few decades. At the forefront of this are ... -
Exploration of Higher-Order Quantum Interference Landscapes
(University of Waterloo, 2017-08-31)Earth, Moon and Sun unite when they star together in the three-body problem, whose intricate plot still baffles us today. For some reason, the factorization of the two-body problem into two one-body problems does not, in ... -
An Exploration of Locality, Conservation Laws, and Spin
(University of Waterloo, 2017-01-23)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 ... -
An Exploration of Secure Circular Multi-Party Quantum Computation
(University of Waterloo, 2022-09-26)Multi party quantum computation (MPQC) is any quantum cryptographic protocol where multiple untrusted users collaborate to perform calculations on their combined data without revealing their private information. MPQC is ... -
Explorations in black hole chemistry and higher curvature gravity
(University of Waterloo, 2018-08-08)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. Super-entropic ... -
Explorations in machine learning for interacting many-body systems.
(University of Waterloo, 2020-09-03)Most interacting many-body systems in physics are not analytically solvable. Instead, numerical methods are needed for the study of these complex and high-dimensional problems. At present, there are many interesting problems ... -
Explorations in the Conformal Bootstrap
(University of Waterloo, 2017-07-19)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 three-dimensional conformal field theories. ... -
Explorations of Black Hole Thermodynamics in de Sitter Spacetime
(University of Waterloo, 2019-01-23)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 many-body Physics with Recurrent Neural Networks
(University of Waterloo, 2023-06-22)Originally developed within the natural language processing community, Recurrent neural networks (RNNs) have enabled remarkable progress in speech recognition and machine translation. These architectures belong to the class ... -
Exploring new routes to decoherence-free quantum computing; and quantum thermodynamics for fermions
(University of Waterloo, 2020-01-23)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 ... -
Exploring the foundation of quantum information in quantum optics
(University of Waterloo, 2016-09-21)Quantum information is promising in solving certain computational problems and information security. The power of its speed up and privacy is based on one of the most tested physical theory: quantum mechanics. Many of ... -
Extended thermodynamics of Taub-NUT and Einstein-scalar spacetimes
(University of Waterloo, 2021-08-12)The main objective of this thesis is to summarize recent developments on the thermodynamics of both AdS Einstein-scalar spacetimes and Lorentzian Taub-NUT spacetimes. We summarize and apply well-known techniques in black ...