Now showing items 21-40 of 349

    • Black Hole Thermodynamics and the Tunnelling Method for Particle Emission 

      Kerner, Ryan (University of Waterloo, 2008-08-29)
      The semi-classical black hole tunnelling method is a useful technique to calculate black hole temperature and understand black hole thermodynamics. I will investigate the black hole tunnelling method in detail. I will ...
    • Black holes in cosmological spacetimes and alternative theories of gravity 

      corman, maxence (University of Waterloo, 2023-08-09)
      This thesis is dedicated to the study of spacetimes surrounding black holes within the context of cosmology, high energy physics and modified theories of gravity. We do this by applying and adapting modern numerical ...
    • Bootstrapping Quantum Field Theories 

      Homrich, Alexandre (University of Waterloo, 2024-01-23)
      This thesis compiles a few developments on the S-matrix bootstrap, conformal field theory, and integrability in N = 4 SYM. After an introduction contextualizing the various works that compose this thesis, we present a ...
    • Born Geometry 

      Svoboda, David (University of Waterloo, 2020-04-21)
      In this thesis, we summarize the work which we authored or co-authored during our PhD studies and also present additional details and ideas that are not found elsewhere. The main topic is the study of T-duality in theoretical ...
    • Born Reciprocal Representations of the Quantum Algebra 

      Yargic, Yigit (University of Waterloo, 2021-08-26)
      This thesis addresses the representations of the Weyl algebra of quantum mechanics with an explicitly Born reciprocal structure and the dynamics of physical systems in these representations. In this context, we discuss ...
    • Bosonic fields in strong-field gravity 

      Siemonsen, Nils (University of Waterloo, 2023-07-19)
      In this thesis, we investigate bosonic fields in the strong-field and highly dynamical regime of general relativity focusing specifically on the black hole superradiance process of scalar and vector fields, as well as on ...
    • Canonical Structure and Conservation Laws of General Relativity on Null Surfaces and at Null Infinity 

      Hopfmueller, Florian (University of Waterloo, 2021-01-12)
      The first part of this thesis addresses the canonical structure of general relativity on generic null surfaces. The pre-symplectic potential of metric general relativity, evaluated on a null surface, is decomposed into ...
    • Carbon nanotube electromechanical systems: Non-linear dynamics and self-oscillation 

      Willick, Kyle (University of Waterloo, 2020-05-13)
      This thesis is motivated by the many sensing applications of carbon nanotube (CNT) nano-electromechanical systems (NEMS), both previous state-of-the-art demonstrations and proposed new uses. This research is particularly ...
    • Causal Models for a Quantum World 

      Ried, Katja Stephanie (University of Waterloo, 2016-05-18)
      Quantum mechanics has achieved unparalleled success as an operational theory, describing a wide range of experiments to remarkable accuracy. However, the physical foundations on which it rests remain as puzzling as they ...
    • Characterization and Control in Large Hilbert spaces. 

      Ryan, Colm (University of Waterloo, 2008-12-03)
      Computational devices built on and exploiting quantum phenomena have the potential to revolutionize our understanding of computational complexity by being able to solve certain problems faster than the best known classical ...
    • Characterization, Verification and Control for Large Quantum Systems 

      Granade, Christopher E. (University of Waterloo, 2015-03-31)
      Quantum information processing offers potential improvements to a wide range of computing endevaors, including cryptography, chemistry simulations and machine learning. The development of practical quantum information ...
    • Characterizing Errors in Quantum Information Processors 

      Sanders, Yuval (University of Waterloo, 2016-05-12)
      Error-free computation is an unattainable ideal, yet our world now contains many computers that appear error-free to their users. That such things are possible is explained by sophisticated theorems that demonstrate the ...
    • Charge Density Wave Order in Cuprate Superconductors Studied by Resonant Soft X-ray Scattering 

      Achkar, Andrew (University of Waterloo, 2015-04-22)
      Cuprate high temperature superconductors have been the subject of intense investigation since their discovery in 1986. The nature of the pairing mechanism in these unconventional superconductors does not seem to be mediated ...
    • Circuit Complexity of Mixed States 

      Ruan, Shan-Ming (University of Waterloo, 2021-07-20)
      Quantum information has produced fresh insights into foundational questions about the AdS/CFT correspondence. One fascinating concept, which has captured increasing attention, is quantum circuit complexity. As a natural ...
    • Classical simulations of quantum systems using stabilizer decompositions 

      Qassim, Hammam (University of Waterloo, 2021-02-19)
      One of the state of the art techniques for classically simulating quantum circuits relies on approximating the output state of the circuit by a superposition of stabilizer states. If the number of non-Clifford gates in ...
    • A Classification of (2+1)D Topological Phases with Symmetries 

      Lan, Tian (University of Waterloo, 2017-09-18)
      This thesis aims at concluding the classification results for topological phases with symmetry. First, we know that “trivial” (i.e., not topological) phases with symmetry can be classified by Landau symmetry breaking ...
    • Classifications of Quantum Field Theories 

      Bhardwaj, Lakshya (University of Waterloo, 2018-07-04)
      We discuss classifications of UV complete supersymmetric theories in six dimensions, and (spin-)topological field theories admitting a finite global symmetry and possibly time-reversal symmetry in three dimensions. We also ...
    • Coherent control of nuclear and electron spins for quantum information processing 

      Park, Kyungdeock (University of Waterloo, 2015-08-10)
      The ability to perform quantum error correction (QEC) arbitrarily many cycles is a significant challenge for scalable quantum information processing (QIP). Key requirements for multiple-round QEC are a high degree of quantum ...
    • Collective Dynamics in NMR and Quantum Noise 

      Annabestani, Razieh (University of Waterloo, 2016-10-17)
      We introduced an open quantum system model to describe the statistical fluctuations of a spin ensemble in NMR. The model considers an ensemble measurement where the detection coil does not distinguish spins, and accounts ...
    • Collective Spin-Cavity Ensembles and the Protection of Higher-dimensional Quantum Information 

      Gunderman, Lane (University of Waterloo, 2022-09-28)
      The development of devices leveraging their quantum nature to outperform classical analogues has been an ongoing effort for many decades now. In this thesis we investigate two facets related to this effort, albeit at ...

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