Browsing Physics and Astronomy by Title
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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 ... 
Satellite Dynamics in Dark Matter Halos
(University of Waterloo, 20100901)I have used an analytic model of tidal interactions to predict the evolution of a substructure in a static dark matter halo. Given the initial conditions of the satellite and background halo, the model predicts with high ... 
Scattering Equations and SMatrices
(University of Waterloo, 20150625)We introduce a new formulation for the treelevel Smatrix in theories of massless particles. Sitting at the core of this formulation are the scattering equations, which yield a map from the kinematics of a scattering ... 
A Search for Nearby Dwarf Galaxies
(University of Waterloo, 20140925)Dwarf galaxies can be used to trace invisible dark matter substructure. Studies of the properties of dwarf galaxy populations are crucial in solving the socalled ``Missing Satellite Problem'', and hold important implications ... 
Searching for the Magnetic Interactions in the Rare Earth Pyrochlore Oxide Yb₂Ti₂O₇
(University of Waterloo, 20110720)Various experiments on Yb₂Ti₂O₇ have shown evidence of strange magnetic behaviour at low temperatures. Specific heat measurements on powder samples of Yb₂Ti₂O₇ show evidence of a sharp peak, indicating the occurence of a ... 
Security Analysis of Quantum Key Distribution: Methods and Applications
(University of Waterloo, 20210927)Quantum key distribution (QKD) can be proved to be secure by laws of quantum mechanics. In this thesis, we review security proof methods in Renner's framework and discuss numerical methods to calculate asymptotic and finite ... 
The Security of Simplified Trusted Relays
(University of Waterloo, 20140827)This thesis examines the security of performing quantum key distribution (QKD) with a simplified trusted relay (STR). The protocol carries out the quantum phase of a conventional trusted relay, however, reduces the required ... 
Security proof methods for quantum key distribution protocols
(University of Waterloo, 20130426)In this thesis we develop practical tools for quantum key distribution (QKD) security proofs. We apply the tools to provide security proofs for several protocols, ranging from discrete variable protocols in high dimensions, ... 
Security Proofs for Quantum Key Distribution Protocols by Numerical Approaches
(University of Waterloo, 20171025)This thesis applies numerical methods to analyze the security of quantum key distribution (QKD) protocols. The main theoretical problem in QKD security proofs is to calculate the secret key generation rate. Under certain ... 
Segregation of chain ends to the surface of a polymer melt: effect of surface profile versus chain discreteness
(Springer, 2016)Silberberg has argued that the surface of a polymer melt behaves like a reflecting boundary on the randomwalk statistics of the polymers. Although this is approximately true, independent studies have shown that violations ... 
Selected Experiments with Proteins at SolidLiquid Interfaces
(University of Waterloo, 20081212)This thesis describes a number of novel experiments contributing to the understanding of protein adsorption from both a fundamental and applied perspective. The first three papers involve the use of the localized surface ... 
Selected topics in Computational Relativity
(University of Waterloo, 20220818)This thesis addresses a collection of topics that are either directly related to, or have implications for, current challenges in computational relativity. In the first part, we explore a spacetime discretization method ... 
Selfassembly of a binary mixture of particles and diblock copolymers
(Royal Society of Chemistry, 2003)Using theoretical models, we undertake the first investigation into the synergy and rich phase behavior that emerges when binary particle mixtures are blended with microphase separating copolymers. We isolate an example ... 
SelfAssembly of Amphiphilic NanoparticleCoil “Tadpole” Macromolecules
(American Chemical Society, 2004)None. 
SelfAssembly of Amphiphilic NanoparticleCoil “Tadpole” Macromolecules
(American Chemical Society, 2004)There has been considerable fascination with the selfassembling behavior of amphiphilic chainlike molecules that range from shortchain surfactants to high molecular weight block copolymers. The selfassembly of simple ... 
The SelfAssembly of Particles with Isotropic Interactions
(University of Waterloo, 20120926)In recent years there has been much interest in the selfassembly of materials. Much of this research has been focused on the selfassembly of particles in solution (colloids), typically on the order of nanometres or ... 
The SelfAssembly of Particles with Isotropic Interactions
(IOP publishing, 20130703)A generic fieldtheoretic model for the selfassembly of particles with isotropic interactions, motivated by ideas in DNAmediated colloidal assembly, is presented. A simplest possible system of colloids in explicit ... 
The selfassembly of particles with isotropic interactions: Using DNA coated colloids to create designer nanomaterials
(AIP publishing, 20140403)Selfconsistent field theory equations are presented that are suitable for use as a coarsegrained model for DNA coated colloids, polymergrafted nanoparticles and other systems with approximately isotropic interactions. ... 
SemiAnalytic Radiatively Inefficient Accretion Flows in General Gravity
(University of Waterloo, 20180105)The Event Horizon Telescope is capable of observing black holes on eventhorizon scales and we can use it to explore deviations from General Relativity. We replicate the results of a previous study using a Newtonian ... 
Sensing the shape of spacetime: detector response and entanglement harvesting in curved space
(University of Waterloo, 20190124)This thesis seeks to understand what information UnruhDeWitt detectors can gain about the structure of spacetime. By coupling to the quantum state of a field on a curved space, the detectors can gain information about ...