Browsing Physics and Astronomy by Title
Now showing items 377-396 of 767
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Morphological and Doppler UHR-OCT Imaging of Retinal Degeneration Induced by Sodium Iodate Toxicity in a Rat Model
(University of Waterloo, 2014-01-29)A high speed, high resolution spectral domain optical coherence tomography (SD-OCT) system was used to study in-vivo early morphological changes and optical nerve head (ONH) blood flow in the Long Evans rat retina, induced ... -
Morphological and Multifractal Analyses of Retinal Amyloid Deposits for Staging in Alzheimer's Disease
(University of Waterloo, 2020-02-12)Dementia is a neurodegenerative condition that leads to loss of cognitive ability, typically in older adults. Alzheimer's disease (AD) is the most common cause of dementia and affects millions of people worldwide. The ... -
Mueller Matrix Confocal Scanning Laser Polarimetry and Optimal Conditions for Improved Image Quality
(University of Waterloo, 2021-01-26)Alzheimer's disease (AD), a fatal neurodegenerative disorder, is the most common form of senile dementia. Five hundred thousand Canadians are living with dementia, a number predicted to double by 2030. Currently, the most ... -
Multifrequency Raman Generation in the Transient Regime
(University of Waterloo, 2006)Two colour pumping was used to investigate the short-pulse technique of Multifrequency Raman Generation (MRG) in the transient regime of Raman scattering. In the course of this study we have demonstrated the ability to ... -
Nanoparticle-regulated phase behavior of ordered block copolymers
(RSC publishing, 2008-06-30)Although block copolymer motifs have received considerable attention as supramolecular templates for inorganic nanoparticles, experimental observations of a nanostructured diblock copolymer containing inorganic ... -
Nanoscale physics of surfactant gene delivery
(University of Waterloo, 2016-01-18)Medicine has met a revolution in the expansion of possibilities for therapy based upon synthetic gene delivery. Imagine the ability to correct problems of a genetic origin with a simple drug -- such science fiction fantasies ... -
Nanoscale quantum transport for quantum information processing
(University of Waterloo, 2013-04-25)In this thesis, I study quantum transport of electron (e.g., current and noise) in quantum dots exploring microscopic processes responsible for spin-relaxation in double quantum dots in Pauli spin blockade regime. This is ... -
Nanostructures based on cyclic C6
(University of Waterloo, 2013-05-24)The properties of a new family of carbon structures based on stacked cyclic C6 rings and intercalated cyclic C6 structures: (C6)n and (C6)nMen-1 have been studied theoretically using ab initio DFT (Density Functional ... -
The Nature and Impact of Active Galactic Nuclei
(University of Waterloo, 2021-08-12)The gravitational interaction around the event horizon of black holes presents theoretical challenges. With the advent of the Event Horizon Telescope (EHT), we are now entering an era in physics where we can probe the ... -
Near-Term Quantum Algorithms for Classical Sampling
(University of Waterloo, 2023-08-14)In the current era of noisy intermediate-scale quantum devices, quantum sampling algorithms have been of great interest as they permit errors in their execution while maintaining their advantage over classical counterparts ... -
Nematic ordering of wormlike polymers
(University of Waterloo, 2005)In this thesis, based on the Onsager excluded volume interaction model, two nematic ordering problems of wormlike (semiflexible) polymer are studied: one is to investigate the isotropic-nematic interface of polymers for ... -
Neural networks and quantum many-body physics: exploring reciprocal benefits.
(University of Waterloo, 2021-08-03)One of the main reasons why the physics of quantum many-body systems is hard lies in the curse of dimensionality: The number of states of such systems increases exponentially with the number of degrees of freedom ... -
Neutron interferometer crystallographic imperfections and gravitationally induced quantum interference measurements
(American Physical Society, 2017-01-25)Dynamical diffraction leads to an interesting, unavoidable set of interference effects for neutron interferometers. This experiment studies the interference signal from two and three successive Bragg diffractions in the ... -
Neutron interferometric measurement of the scattering length difference between the triplet and singlet states of n-He-3
(American Physical Society, 2014-12-15)We report a determination of the n-He-3 scattering length difference = b = = b = 1 -b = 0 = [-5.411 = 0.031 (statistical) = 0.039 (systematic)] fm between the triplet and singlet states using a neutron interferometer. This ... -
Neutron Interferometry at the National Institute of Standards and Technology
(Hindawi, 2015)Neutron interferometry has proved to be a very precise technique for measuring the quantum mechanical phase of a neutron caused by a potential energy difference between two spatially separated neutron paths inside ... -
Neutron limit on the strongly-coupled chameleon field
(American Physical Society, 2016-03-11)The physical origin of the dark energy that causes the accelerated expansion rate of the Universe is one of the major open questions of cosmology. One set of theories postulates the existence of a self-interacting scalar ... -
Neutron Scattering Investigations of Three-Dimensional Topological States
(University of Waterloo, 2023-11-13)Topological magnets represent a unique class of quantum materials in which a nontrivial Berry curvature in real- or momentum-space couples to the magnetic properties of the topological electronic or spin system. Magnetic ... -
Neutron Stars, the Exotica - From Modifying General Relativity to Strong Magnetic Fields
(University of Waterloo, 2015-12-22)The gravitational aether theory is a modification of General Relativity that decouples vacuum energy from gravity, and thus can potentially address the cosmological constant problem. The classical theory is distinguishable ... -
New Aspects of Quantum Interactions: Acceleration-Induced Transparency, Newton’s Cradle Spectra, Superoscillations
(University of Waterloo, 2023-01-12)We present new results on different aspects of quantum interactions, from new phenomena to new mathematical tools. First, two new phenomena of light-matter interactions are presented: the stimulated Unruh effect and ... -
New methods in quantum error correction and fault-tolerant quantum computing
(University of Waterloo, 2018-10-22)Quantum computers have the potential to solve several interesting problems in polynomial time for which no polynomial time classical algorithms have been found. However, one of the major challenges in building quantum ...