Browsing Physics and Astronomy by Type "Doctoral Thesis"
Now showing items 120 of 344

Ablation loading and qudit measurements with barium ions
(University of Waterloo, 20230831)Barium is one of the best ions for performing quantum information in a trappedion system. Its longlived metastable D5/2 state allows for some interesting quantum operations, including the current best state preparation ... 
Adhesion of Two Cylindrical Particles to a Soft Membrane Tube
(University of Waterloo, 20120926)The interaction of nanoparticles with biological systems, especially interactions with cell membranes, has been a subject of active research due to its numerous applications in many areas of softmatter and biological ... 
Advances in Superconducting Circuit Quantum Electrodynamics
(University of Waterloo, 20220131)The topics of this thesis are based on circuit quantum electrodynamics (cQED), a theoretical and experimental platform allowing the study of lightmatter interaction. This platform is rich both in observable physical ... 
Advancing Techniques for Detecting Dwarf Satellite Populations Beyond the Local Group
(University of Waterloo, 20220520)This thesis includes material from three papers that develop techniques for quantifying faint dwarf satellite populations outside the Local Group. Dwarf satellites are important for our understanding of smallscale structure ... 
Advancing the robustness of polarization and time bin quantum key distribution for freespace channels
(University of Waterloo, 20230515)Quantum networks are an emerging technology that aims to harness the power of quantum mechanics to revolutionize communication and computation. Many countries are establishing national quantum networks to modernizing their ... 
Adventures in Holography
(University of Waterloo, 20140711)In this thesis, inspired by the holographic theories, we study a variety of interesting problems in gravity, condensed matter and cosmology. First, we explore the entanglement entropy of a general region in a theory of ... 
An ALMA View of Molecular Gas in Brightest Cluster Galaxies
(University of Waterloo, 20180925)In this thesis I use ALMA observations to map the distribution and kinematics of molecular gas in the brightest cluster galaxies of three galaxy clusters: 2A0335+096, RXJ0821+0752, and RXCJ15040248. The goal is to understand ... 
Amplitudes in the Spin Foam Approach to Quantum Gravity
(University of Waterloo, 20170731)In this thesis, we study a Spin Foam model for 4D Riemannian quantum gravity, and propose a new way of imposing the simplicity constraints that uses the recently developed holomorphic representation. Rather than imposing ... 
Applications of Adiabatic Approximation to One and Twoelectron Phenomena in Strong Laser Fields
(University of Waterloo, 20101220)The adiabatic approximation is a natural approach for the description of phenomena induced by low frequency laser radiation because the ratio of the laser frequency to the characteristic frequency of an atom or a molecule ... 
Applications of the Wormlike Chain Model in Polymer Physics: Selfconsistent Field Theory
(University of Waterloo, 20130430)The selfconsistent field theory (SCFT) has reveived a great success in prediction of the physical properties of a variety of polymeric systems in the recent two decades. However, the traditional SCFT is based on the ... 
Aspects of Anomaly in Condensed Matter Physics
(University of Waterloo, 20230530)Anomalies have proven to be an important tool for unraveling the enigmatic properties of stronglycoupled condensed matter systems. Especially, it provides powerful constraints on the emergibility problem, i.e., whether a ... 
Aspects of Nonlocality: from Particles to Black Holes
(University of Waterloo, 20160506)This dissertation is a collection of works on different aspects of the following subjects: causal setcontinuum correspondence, wave propagation on causal sets, nonlocal quantum field theory, potential connection between ... 
Aspects of Quantum Information and AdS/CFT Duality
(University of Waterloo, 20210517)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 ... 
Aspects of Scattering Amplitudes and Moduli Space Localization
(University of Waterloo, 20190819)We propose that intersection numbers of certain cohomology classes on the moduli space of genuszero Riemann surfaces with $n$ punctures, $\mathcal{M}_{0,n}$, compute treelevel scattering amplitudes in quantum field ... 
Assessing the Accuracy of Cosmological Parameters Estimated from Velocity – Density Comparisons
(University of Waterloo, 20240110)A promising method for measuring the cosmological parameter combination fσ₈ is to compare observed peculiar velocities with peculiar velocities predicted from a galaxy density field using linear perturbation theory, known ... 
At the Corner of Space and Time
(University of Waterloo, 20191209)We perform a rigorous piecewiseflat discretization of classical general relativity in the firstorder formulation, in both 2+1 and 3+1 dimensions, carefully keeping track of curvature and torsion via holonomies. We show ... 
Augmenting Quantum Mechanics with Artificial Intelligence
(University of Waterloo, 20181204)The simulation of quantum matter with classical hardware plays a central role in the discovery and development of quantum manybody systems, with farreaching implications in condensed matter physics and quantum technologies. ... 
Biophysical Modelling of Antimicrobial Peptide’s Interactions with Phospholipid and Lipopolysaccharide Membranes
(University of Waterloo, 20190523)Antimicrobial peptides (AMPs) are naturallyoccurring peptide antibiotics. The way they work has inspired a vigorous search for optimized peptide antibiotics for fighting resistant bacteria. Cationic AMPs cleverly utilize ... 
Black hole dynamics in Effective Field Theory extensions to General Relativity
(University of Waterloo, 20230922)This thesis aims to develop and implement mathematical and numerical techniques to enable the study of deviations from General Relativity (GR) in the nonlinear regime. The focus is on studying the nonlinear dynamics of ... 
The black hole information paradox in a brane world
(University of Waterloo, 20230628)Recent progress in our understanding of the black hole information paradox has led to a new prescription for calculating entanglement entropy, which involves special subsystems in regions where gravity is dynamical, called ...