This is the collection for the University of Waterloo's Department of Physics and Astronomy .

Research outputs are organized by type (eg. Master Thesis, Article, Conference Paper).

Waterloo faculty, students, and staff can contact us or visit the UWSpace guide to learn more about depositing their research.

Recent deposits

  • Defects and Boundaries in Quantum Field Theories 

    Wu, Jingxiang (University of Waterloo, 2021-07-29)
    We discuss some aspects of defects and boundaries in quantum field theories (QFTs) and their applications in revealing non-perturbative aspects of QFTs in combination with other techniques, including integrability. ...
  • Quantum Blind Data Compression and Structure of Quantum Operations Approximately Preserving Quantum States 

    Kuroiwa, Kohdai (University of Waterloo, 2021-07-29)
    In this thesis, we investigate a variation of quantum information processing tasks, blind data compression, and we analyze an approximation of a structure of a set of quantum states closely related to the task, which is ...
  • 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 ...
  • Concepts and methods for benchmarking quantum computers 

    Boone, Kristine (University of Waterloo, 2021-07-09)
    Quantum computers have the potential to bring about a new age of technology, but in order for them to become a reality, the elephant in the room must be addressed, quantum errors. The complexity of quantum errors grows ...
  • Guiding our interpretation of quantum theory by principles of causation and inference 

    Schmid, David (University of Waterloo, 2021-07-07)
    A key aim of quantum foundations is to characterize the sense in which nature goes beyond classical physics. Understanding nonclassicality is one of our best avenues towards finding a satisfactory interpretation of quantum ...
  • Late-universe signals in the microwave sky: extragalactic dust, electrons, and other baryonic effects 

    McCarthy, Fiona (University of Waterloo, 2021-06-07)
    This thesis collects much of the work I have done over the last four years as a PhD student. It has two focuses. Part 1 discusses gravitational radiation emitted from two maximally charged black holes in Einstein--Maxwell--dilaton ...
  • Laser-Based Imaging of Novel Charge Density Wave and Superconducting Materials 

    Patel, Tarun (University of Waterloo, 2021-06-02)
    The following thesis presents experimental study of two crystalline materials which show correlated electron phases. The first material 1T-TaS2 is a two-dimensional van-der-Waals material. This family of materials ...
  • Magnetotransport in Transition Metal Dichalcogenide Semimetals 

    Tiwari, Archana (University of Waterloo, 2021-06-02)
    In this thesis, we study the large magnetoresistance in MoTe2, and non-linear anomalous Hall effect in MoTe2 and WTe2. Thin flakes cleaved from layered single crystals exhibit high mobility, and semimetals show nearly ...
  • Gravitational Thermodynamics: From Black Holes to Holography 

    Simovic, Fil (University of Waterloo, 2021-06-01)
    The subject of gravitational thermodynamics lies at the center of numerous fields of study, many of which may seem disconnected, yet have proven to be deeply entwined. This thesis examines two primary facets of this subject, ...
  • Transition Galaxies: The Evolution of Environmental Quenching 

    McNab, Karen (University of Waterloo, 2021-05-28)
    We study the evolution of environmental quenching using a photometric selection of transition galaxies in GOGREEN- which encompasses clusters between 1<z<1.5 spanning a wide range in halo mass. We split the galaxies in ...
  • Aspects of Quantum Information and AdS/CFT Duality 

    Al Balushi, Abdulrahim (University of Waterloo, 2021-05-17)
    This thesis considers four different aspects of quantum information, AdS/CFT duality, and the interplay between them. First, we study the holographic complexity conjectures in detail for rotating black holes. We focus ...
  • Characterization of Three-Level Control in Capacitively-Shunted Flux Quantum Circuits Using Randomized Benchmarking 

    Kononenko, Michal (University of Waterloo, 2021-05-12)
    Superconducting devices have emerged as leading candidates for building practical quantum computers, owing to their scalability, designability, and ease of control. Development of superconducting devices has been accompanied ...
  • Laser-cooled Atomic Ensembles in Hollow Optical Fibers 

    Venuturumilli, Sai Sreesh (University of Waterloo, 2021-05-06)
    This thesis explores hollow-core fibres as a platform for quantum optics experiments with laser-cooled atomic ensembles. The non-diffracting, tightly-confined guided modes of these fibers grant us a ~µm-wide one-dimensional ...
  • Non-Markovianity in Logical Fidelity Estimation 

    Caesura, Athena (University of Waterloo, 2021-02-26)
    As quantum devices are progressively scaled and refined, quantum codes will become indispensable to guarantee reliable computation in the presence of noise. Due to the difficulties of characterizing physical noise, direct ...
  • Nuclear Spin Dynamics Under Above-Bandgap Optical Pumping in Silicon 

    Deshpande, Rahul (University of Waterloo, 2021-02-26)
    Phosphorus defects in silicon have been proposed as candidates for quantum information and quantum sensing applications, with proposals utilizing both the donor electron spin as well as the 31P nuclear spin. Initialization ...
  • 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 ...
  • Simulation and mitigation of noise in Rydberg atom systems using quantum optimal control 

    MBAKOB TCHOUAWOU, Caroline Laure (University of Waterloo, 2021-02-18)
    We design a quantum optimal control protocol to mitigate the noise in Rydberg atom systems.
  • Mean-Field Theory of Collective Behavior of Quantum Dipolar Rotors 

    Liu, Bo (University of Waterloo, 2021-02-08)
    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 ...
  • What can detectors detect? 

    Henderson, Laura (University of Waterloo, 2021-01-29)
    This thesis is focused on using a pair of Unruh-DeWitt detectors, which interact locally with a quantum field, to gain information about properties of the field and the underlying spacetime. First, we consider a massless ...
  • Quantum dot devices in silicon and dopant-free GaAs/AlGaAs heterostructures 

    Buonacorsi, Brandon (University of Waterloo, 2021-01-29)
    Single spin quantum dot qubits in silicon are a promising candidate for a scalable quantum processor due to their long coherence times, compact size, and ease of integration into existing fabrication technologies. Realizing ...

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