Browsing Physics and Astronomy by Title
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Galactic Molecular Dust Clumps using SCUBA2  Effects of HII Regions on Star Formation
(University of Waterloo, 20180921)I present findings from a broad array of SCUBA2 observations. The sample consists of 38 SCUBA2 images targeted near mature, galactic, HII regions of the Sharpless "Sh2" or BlitzStarkFich "BFS" catalogue. In 31 of those ... 
Galaxy Formation at Redshift ~0.75: A Low Mass Survey & The Role of Environment
(University of Waterloo, 20110929)The majority of galaxy formation studies which explore beyond local redshifts do not typically probe down to the dwarf galaxy stellar mass range of ∼ 10^9 Msun . Thus trends in the observed evolution or characteristics of ... 
Galaxy Morphology In Cluster Environments
(University of Waterloo, 20170825)It is a well known fact that cluster environments favour earlytype galaxies over late type. However, the physical origin of the correlation remains uncertain. We focus specifically on the external environmental mechanisms ... 
Galaxy Transformations in the Last 5 Billion Years
(University of Waterloo, 20100901)It has become clear that the global star formation rate in the Universe has been decreasing since at least z~1, and blue, starforming galaxies are transformed into red, passive galaxies through one or more processes. The ... 
Gauge Models of Topological Phases and Applications to Quantum Gravity
(University of Waterloo, 20180626)In 2+1 dimensions, gravity is an SU(2) topological gauge theory that can be written as BF theory. In the condensed matter literature, the Hamiltonian realization of BF theory for finite groups is known as the Kitaev model. ... 
Gauge Theory Dynamics and CalabiYau Moduli
(University of Waterloo, 20140702)We compute the exact partition function of two dimensional N=(2,2) supersymmetric gauge theories on S². For theories with SU(21)_A invariance, the partition function admits two equivalent representations corresponding to ... 
Generalized holographic dualities for metric gravity & Quantum geometry based on area variables
(University of Waterloo, 20200918)Holography holds promise for simplifying computations in quantum gravity. In part I of this thesis, we construct holographic boundary theories for linearized gravity, for a general family of finite or quasilocal boundaries, ... 
Generating Functionals for Spin Foam Amplitudes
(University of Waterloo, 20140925)Various approaches to Quantum Gravity such as Loop Quantum Gravity, Spin Foam Models and TensorGroup Field theories use invariant tensors on a group, called intertwiners, as the basic building block of transition amplitudes. ... 
Generation of Short Laser Pulses by Using Hollow Fibre and Chirped Mirror Compressor System
(University of Waterloo, 20171023)A FEMTOLASERS hollow core silicon fibre of length 1 m and 250μm inner diameter was set up in the lab in Waterloo with the purpose of generating sub 10fs pulses for Coulomb Explosion Imaging (CEI). The input laser was a new ... 
Geometry of Quantum States from Symmetric Informationally Complete Probabilities
(University of Waterloo, 20130806)It is usually taken for granted that the natural mathematical framework for quantum mechanics is the theory of Hilbert spaces, where pure states of a quantum system correspond to complex vectors of unit length. These vectors ... 
Gravitational Thermodynamics: From Black Holes to Holography
(University of Waterloo, 20210601)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, ... 
Groupfinding with photometric redshifts: The Photoz Probability Peaks algorithm
(University of Waterloo, 20100125)We present a galaxy groupfinding algorithm, the Photoz Probability Peaks (P3) algorithm, optimized for locating small galaxy groups using photometric redshift data by searching for peaks in the signaltonoise of the ... 
Growth of Silicon Nanowire Mechanical Oscillators for ForceDetected Magnetic Resonance Measurements
(University of Waterloo, 20180119)This thesis describes two ways to grow silicon nanowires with the catalyst gold (Au) by Chemical Vapor Deposition (CVD) system. One way to prepare catalyst is dropcasting gold nanoparticles solution, the other is making ... 
Guiding our interpretation of quantum theory by principles of causation and inference
(University of Waterloo, 20210707)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 ... 
¹H MAS NMR Spectral Coalescence of Water and Hydroxyl Resonances in MCM41
(University of Waterloo, 20110901)Solid state ¹H MAS NMR spectroscopy was used to investigate the temperature and hydration dependance of water and hydroxyl proton spectra of hydrated mesoporous MCM41. The NMR spectra show a complex peak structure, with ... 
Hall Resistance Characterization of Thermoelectric Materials; Subgap Leakage Measurement of Josephson Junctions
(University of Waterloo, 20200601)The thesis has two parts. The first part is the Hall measurement of thermoelectric materials which are promising energy sources in the future. By characterizing the Hall resistance at different environments, their charge ... 
Heralding Photonic Qubits for Quantum Communication
(University of Waterloo, 20160122)Quantum communication attempts to harness the unique rules of quantum mechanics to perform communication tasks that are difficult or impossible using classical rules. To realize these benefits, information must be carried ... 
A Herschel/HIFI study of Water in Two IntermediateMass Star Forming Regions: Vela IRS 17 and Vela IRS 19
(University of Waterloo, 20130527)While the single core accretion model for low mass star formation is well developed, it cannot simply be extended into the high mass star formation regime where clustered star formation dominates. The study of intermediatemass ... 
Heterogeneous Particles with Isotropic Interactions: Investigating the Effect of Multiple Species and Particle Size Disparity on SelfAssembly
(University of Waterloo, 20151021)There is much interest in using selfassembly to build materials at the microscopic level by using soft matter systems such as block copolymers and DNA coated colloids. Selfconsistent field theory (SCFT) has seen much ... 
Heterostructure development and quantum control for semiconductor qubits
(University of Waterloo, 20220104)States of confined electrons in semiconductors are promising candidates for quantum bits with high controllability, scalability, and coherence. Particularly, spin quantum dots offer direct integration with the modern MOS ...