Browsing Physics and Astronomy by Title
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Ultra Low Dissipation Silicon Nanowire Resonator Arrays for Scanning Probe Applications
(University of Waterloo, 20200123)This work describes the fabrication and characterization of silicon nanowire oscillators for use in ultrahigh sensitivity force detection. These structures are optimized for use as scanning probes by fabricating ... 
Ultralow temperature dilatometry
(University of Waterloo, 20101028)This thesis presents research of two novel magnetic materials, LiHoF4 and Tb2Ti2O7. Experiments were performed at low temperatures and in an applied magnetic field to study thermal expansion and magnetostriction using a ... 
Ultrafast coincidence characteristics of entangled photons towards entangled twophoton absorption
(University of Waterloo, 20140128)Nonlinear optics has had extensive application into a vast array of scientific fields. One such nonlinear process, twophoton absorption (TPA), has had a wildly successful adoption into the field of biological imaging and ... 
Ultrafast Imaging of Molecular Processes in Small Molecules Using Coulomb Explosion Imaging
(University of Waterloo, 20170927)Molecular structure and dynamics of three molecules (carbonyl sulfide, acetylene, and ethylene) are examined using various implementations of the Coulomb Explosion Imaging technique. Soft xrays from the Canadian Light ... 
Ultrafast manipulation of single photons using dispersion and sumfrequency generation
(University of Waterloo, 20161201)Single photons provide a natural platform for quantum communication and quantum networking, as they can be entangled in many degrees of freedom and maintain coherence over longdistance links. However, while their minimal ... 
Ultrafast Metrology in the Quantum Domain
(University of Waterloo, 20190215)Single photons are a natural platform for quantum technologies as they support entanglement in many degrees of freedom and are inherently well protected from a detrimental type of noise called decoherence. In order to ... 
An Ultrafast Source of Polarization Entangled Photon Pairs based on a Sagnac Interferometer
(University of Waterloo, 20090126)This thesis describes the design, development, and implementation of a pulsed source of polarizationentangled photons using spontaneous parametric downconversion in a Sagnac interferometer. A tangle of 0.9286 ± 0.0015, ... 
Ultrahigh Resolution Optical Coherence Tomography for Noninvasive Imaging of Outer Retina Degeneration in Rat Retina
(University of Waterloo, 20130222)This project initiated with the aim for improving the ultrahigh resolution optical coherence tomography (UHROCT) system performance by considering the limitations to the axial OCT resolution for in vivo imaging of human ... 
Understanding Polarization Distortions for Realworld Quantum Key Distribution
(University of Waterloo, 20200515)The field of quantum key distribution (QKD) has seen many advancements since its conception in 1984. Recently there have been developments towards establishing free space optical links between satellites and earth to enable ... 
Understanding sequential measurements in psiepistemic ontological models
(University of Waterloo, 20190806)Since the famous debates of Einstein & Bohr, physicists have argued about the nature of the quantum state. Is it best thought of as describing thewaythingsare out there in the world, or merely as a description of our ... 
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 ... 
Universal Control in 1e2n Spin System Utilizing Anisotropic Hyperfine Interactions
(University of Waterloo, 20100930)ESR quantum computing presents faster means to perform gates on nuclear spins than the traditional NMR methods. This means ESR is a testbed that can potentially be useful in ways that are not possible with NMR. The first ... 
Universal formula for the holographic speed of sound
(Elsevier, 20180610)We consider planar hairy black holes in five dimensions with a real scalar field in the Breitenlohner–Freedman window and derive a universal formula for the holographic speed of sound for any mixed boundary conditions of ... 
The UnruhDeWitt Detector Model: Modified Dispersion and Nonlinear Couplings
(University of Waterloo, 20210930)In this work, we employ the UnruhDeWitt (UDW) detector model to various ends. We present applications of this relativistic detector model to quantum optics, including decoherence in optical cavities and nonlinear quantum ... 
UnruhDeWitt detector response along static and circulargeodesic trajectories for SchwarzschildAdS black holes
(University of Waterloo, 20140826)We present novel methods to numerically address the problem of characterizing the response of particle detectors in curved spacetimes. These methods allow for the integration of the Wightman function, at least in principle, ... 
Vacuum and Optical Designs for an Openaccess Trapped Ion Quantum Processor
(University of Waterloo, 20200921)This thesis focuses on the design of a vacuum system for a trapped ion quantum computer that will house an advanced ion chip trap from Sandia National Laboratories, capable of performing high fidelity operations on up to ... 
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 ... 
The Vertex Algebra Vertex
(University of Waterloo, 20190719)This thesis reviews some aspects of a large class of vertex operator algebras labelled by $(p,q)$ webs colored by nonnegative integers associated to faces of the web diagrams [1,2,3,4]. Such vertex operator algebras ... 
Violation of an augmented set of LeggettGarg inequalities and the implementation of a continuous in time velocity measurement
(University of Waterloo, 20190711)Macroscopic realism (MR) is the view that a system may possess definite properties at any time independent of past or future measurements, and may be tested experimentally using the LeggettGarg inequalities (LGIs). In ... 
Virtues of the Visible; Voluminous Vistas & Velocities
(University of Waterloo, 20140811)Peculiar velocities are the motions of objects in excess of that resulting from the expansion of the Universe. They arise from gravitational interactions, and as such, probe the underlying distribution of dark matter on ...