Physics and Astronomy
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

NonMarkovianity in Logical Fidelity Estimation
(University of Waterloo, 20210226)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 AboveBandgap Optical Pumping in Silicon
(University of Waterloo, 20210226)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
(University of Waterloo, 20210219)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 nonClifford gates in ... 
Simulation and mitigation of noise in Rydberg atom systems using quantum optimal control
(University of Waterloo, 20210218)We design a quantum optimal control protocol to mitigate the noise in Rydberg atom systems. 
MeanField Theory of Collective Behavior of Quantum Dipolar Rotors
(University of Waterloo, 20210208)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?
(University of Waterloo, 20210129)This thesis is focused on using a pair of UnruhDeWitt 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 dopantfree GaAs/AlGaAs heterostructures
(University of Waterloo, 20210129)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 ... 
Mueller Matrix Confocal Scanning Laser Polarimetry and Optimal Conditions for Improved Image Quality
(University of Waterloo, 20210126)Alzheimer's disease (AD), a fatal neurodegenerative disorder, is the most common form of senile dementia. Five hundred thousand Canadians are living with dementia, a number predicted to double by 2030. Currently, the most ... 
Frontiers of Gravity: Astrophysical Environments, Ringdown Nonlinearities and the Semiclassical Approximation
(University of Waterloo, 20210122)Einstein’s general relativity is based on a tensorial, nonlinear equation for the spacetime metric. The gravitational interaction is however so weak that, in most circumstances, the equations can be solved perturbatively. ... 
Variational Quantum Eigensolvers Applied to Problems in High Energy Physics
(University of Waterloo, 20210113)Variational methods have long been used to study stronglycorrelated quantum systems. Despite the successes of classical protocols, these are limited in the study of quantum systems, either due to numerical errors like the ... 
Optics, Loss and Gravity
(University of Waterloo, 20210113)We look at some ideas that can be found from making connections among optics, nonHermitian dynamics and gravity. Using nonlinear optics, we demonstrate how loss can be used to make brighter sources of thermal light. Also, ... 
Canonical Structure and Conservation Laws of General Relativity on Null Surfaces and at Null Infinity
(University of Waterloo, 20210112)The first part of this thesis addresses the canonical structure of general relativity on generic null surfaces. The presymplectic potential of metric general relativity, evaluated on a null surface, is decomposed into ... 
Proposed Methods For Measuring and Interpreting Mueller Matrices in In Vivo Retinal Polarimetry
(University of Waterloo, 20201223)Mueller matrix polarimetry is the examination of how a sample transforms the polarization state of light. This requires probing the sample with input light of a variety of generated polarization states and analyzing the ... 
Risk associated with H2S evolution in sour aquifers during CO2 injection
(Elsevier, 2011)Many aquifers suitable for CO2 sequestration contain measurable concentration of dissolved nonhydrocarbon species. In this paper, the compositional modelling of the CO2 injection into aquifers that contain dissolved ... 
Feasibility of Injecting Large Volumes of CO2 into Aquifers
(Elsevier, 200902)Although it is recognized that deep aquifers offer a very large potential storage capacity for CO2 sequestration it is not clear how to fill the storage with a large volume of CO2 in a relatively short period of time. The ... 
Towards simulating 2D effects in lattice gauge theories on a quantum computer
(University of Waterloo, 20201026)Quantum Field Theories (QFTs) are the most successful theories for describing nature at its most fundamental level. Despite the fact that QFTs are capable of predicting a wide range of phenomena, obtaining solutions to ... 
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 ... 
The SMatrix of Gauge and Gravity Theories and The TwoBlack Hole Problem
(University of Waterloo, 20201001)This thesis is devoted to diverse aspects of scattering amplitudes in gauge theory and gravity including interactions with matter particles. In Part I we focus on the applications of massive scattering amplitudes in gravity ... 
Quantum Black Holes in the Sky
(University of Waterloo, 20200930)Black Holes are possibly the most enigmatic objects in our Universe. From their detection in gravitational waves upon their mergers, to their snapshot eating at the centres of galaxies, black hole astrophysics has undergone ... 
Unifying Thermal Big Bang and Black Holes
(University of Waterloo, 20200930)Theories that stand the test of constant bombardment of new (and old) ideas, observations and unexplained phenomena are hard to come by. Despite countless attempts over many years of trying, cosmology and gravitational ...