Now showing items 3-22 of 568

• #### Above Bandgap Hyperpolarization Mechanism in Isotopically Purified Silicon and Optimal Bayesian Experiment Design for $T_1$ Estimation ﻿

(University of Waterloo, 2018-05-24)
This thesis is concerned with the mechanism underlying the above bandgap illumination Dynamic Nuclear Polarization (DNP) of phosphorus donors in isotopically purified silicon-28. Two proposed DNP models are introduced and ...
• #### Abundance Matching with the Galaxies of the Virgo Cluster and the Stellar-to-Halo Mass Relation ﻿

(University of Waterloo, 2012-09-27)
Using data from the Next Generation Virgo Cluster Survey and high-resolution simulations of Virgo cluster-like halos, we determine the stellar-to-halo mass relation (SHMR) for subhalos, using the technique of abundance ...
• #### Achievable Polarization for Heat-Bath Algorithmic Cooling ﻿

(University of Waterloo, 2015-08-17)
Highly pure quantum states play a central role in applications of quantum information science, both as initial states for quantum algorithms and as resources for quantum error correction. Controlled preparation of pure ...
• #### Adhesion of Two Cylindrical Particles to a Soft Membrane Tube ﻿

(University of Waterloo, 2012-09-26)
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 soft-matter and biological ...
• #### Adsorption of surface-modified silica nanoparticles to the interface of melt poly (lactic acid) and supercritical carbon dioxide ﻿

(ACS Publications, 2015-04-28)
With the purpose of fabricating polymer nanocomposite foams and preventing coalescence in foaming processes, the interfacial tension of poly (lactic acid) (PLA) -silica composites is investigated in this work. Synthesized ...
• #### Adventures in Holography ﻿

(University of Waterloo, 2014-07-11)
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, 2018-09-25)
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 RXCJ1504-0248. The goal is to understand ...
• #### Aluminium-Palladium Transition Edge Sensors ﻿

(University of Waterloo, 2008-09-15)
A superconducting Transition Edge Sensor (TES) can be used to make the most sensitive thermometer which operates in a very narrow temperature range. The thin film bi-layer fabrication details are discussed as well as ...
• #### Amended Model of Large Scale Dark Matter Structure ﻿

(University of Waterloo, 2020-09-03)
Dark matter makes up around a quarter of the total energy density in the universe, but its identity remains elusive. Current ways of studying dark matter have centered around its macroscopic properties, such as density ...
• #### Amplitudes in the Spin Foam Approach to Quantum Gravity ﻿

(University of Waterloo, 2017-07-31)
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 ...
• #### Analytical and Numerical Studies of 2D XY Models with Ring Exchange ﻿

(University of Waterloo, 2012-08-31)
In this thesis we take several different analytic and numerical approaches to studying the classical J-K model. This model describes an interacting many-body system of spins with continuous symmetry which interact via ...
• #### An apparatus for studying interactions between Rydberg atoms and metal surfaces ﻿

(University of Waterloo, 2007-09-27)
A system suitable for studying interactions between ⁸⁷Rb Rydberg atoms and metal surfaces has been constructed. This thesis describes the design and construction of the apparatus, and some test results. Atoms in a vapor ...
• #### Application of the Flag-State Squashing Model to Numerical Quantum Key Distribution Security Analysis ﻿

(University of Waterloo, 2020-09-18)
The squashing model proof technique is a powerful tool in proving security of quantum key distribution (QKD) protocols since it reduces the dimension of the associated computational problem from infinite to finite. In the ...
• #### Applications of Adiabatic Approximation to One- and Two-electron Phenomena in Strong Laser Fields ﻿

(University of Waterloo, 2010-12-20)
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 Raman Spectroscopy ﻿

(University of Waterloo, 2014-08-22)
This thesis is devoted to exploring experimental applications of Raman spectroscopy. The ability of Raman spectroscopy to investigate the vibrational modes of a molecule was explored in several studies. The work included ...
• #### Applications of the Quantum Kernel Method on a Superconducting Quantum Processor ﻿

(University of Waterloo, 2020-05-29)
The widespread benefits of classical machine learning along with promised speedups by quantum algorithms over their best performing classical counterparts have motivated development of quantum machine learning algorithms ...
• #### Applications of the Wormlike Chain Model in Polymer Physics: Self-consistent Field Theory ﻿

(University of Waterloo, 2013-04-30)
The self-consistent 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 Nonlocality: from Particles to Black Holes ﻿

(University of Waterloo, 2016-05-06)
This dissertation is a collection of works on different aspects of the following subjects: causal set--continuum correspondence, wave propagation on causal sets, nonlocal quantum field theory, potential connection between ...
• #### Aspects of Quantum Field Theory with Boundary Conditions ﻿

(University of Waterloo, 2019-08-02)
This thesis has two modest goals. The primary goal is to deliver three results involving particle detectors interacting with a quantum field in presence of non-trivial boundary conditions (Dirichlet, Neumann, periodic; ...
• #### Aspects of Scattering Amplitudes and Moduli Space Localization ﻿

(University of Waterloo, 2019-08-19)
We propose that intersection numbers of certain cohomology classes on the moduli space of genus-zero Riemann surfaces with $n$ punctures, $\mathcal{M}_{0,n}$, compute tree-level scattering amplitudes in quantum field ...

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