Browsing Physics and Astronomy by Title
Now showing items 480-499 of 772
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Polarization Effects of Mechanical Impacts on Dispersion Compensating Modules
(University of Waterloo, 2009-05-22)Novel methods and apparatus used to measure high-speed state of polarization changes are developed. Knowledge of the effects of mechanical impacts on the state of polarization will benefit the reliability of optical ... -
Polarization Entangled Photon Sources for Free-Space Quantum Key Distribution
(University of Waterloo, 2018-08-27)Free-space quantum key distribution has recently achieved several milestones, such as the launch and results of the first quantum satellite, Micius. The emergence of quantum satellites has certainly made progress towards ... -
Polymeric Foaming Predictions from the Sanchez-Lacombe Equation of State: Application to Polypropylene-Carbon Dioxide Mixtures
(American Physical Society, 2017)A simple off-lattice method of deriving the Sanchez-Lacombe equation of state is presented. The Sanchez-Lacombe equation of state for mixtures is shown to be thermodynamically inconsistent for all mixing rules in such a ... -
Powell Lens-based Line-Scan Spectral Domain Optical Coherence Tomography for Cellular Resolution Imaging of Biological Tissues
(University of Waterloo, 2022-09-28)A line-scan spectral-domain optical coherence tomography system was developed for corneal imaging. It utilizes a Powell lens to achieve a better line illumination power distribution than the conventional use of cylindrical ... -
Powerful Shocks and Cavities in the Hot Atmosphere of the MS 0735 Galaxy Cluster
(University of Waterloo, 2014-08-26)Cool core clusters host bright centres that radiate away their energy in less than 10^9 yr. If uncompensated by heating, the hot atmosphere will cool and form stars at rates of hundreds to thousands of solar masses per ... -
PPLN-based photon pair sources toward biphoton quantum frequency conversion
(University of Waterloo, 2018-08-03)While quantum properties of light promise much-needed enhancements to metrology, further development of quantum light sources and associated tools are needed to readily harness two-photon interactions via energy-time ... -
Practical Advances in Quantum Error Correction & Communication
(University of Waterloo, 2013-10-25)Quantum computing exists at the intersection of mathematics, physics, chemistry, and engineering; the main goal of quantum computing is the creation of devices and algorithms which use the properties of quantum mechanics ... -
Practical Quantum Communication
(University of Waterloo, 2015-10-30)Current communication networks are based on classical physics and classical information-processing. However, for nearly a century, we have known that at its most fundamental level, the universe is governed by the laws of ... -
Practical Quantum Fingerprinting and Appointment Scheduling
(University of Waterloo, 2017-10-24)Quantum protocols for many communication tasks have been found which significantly improve on their classical counterparts. However, many of these protocols are beyond the reach of current technology. In this work, we find ... -
The Practical Realization of Quantum Repeaters: An Exploration
(University of Waterloo, 2015-10-27)This thesis is an exploration of quantum repeaters from a practical point of view. Quantum repeaters are devices which help improve the quantum communication capacity of a lossy bosonic channel (which include photonic ... -
Pre-Privacy Amplification: A Post-Processing Technique for Quantum Key Distribution with Application to the Simplified Trusted Relay
(University of Waterloo, 2023-04-26)Until quantum repeaters and quantum error correcting codes can be made commercially viable, long distance quantum key distribution (QKD) will continue to rely on trusted relay satellites. Strongly constrained by weight ... -
Precision Cosmology Using Voids
(University of Waterloo, 2023-08-04)In the late 1990s, the discovery that the expansion rate of the Universe was accelerating was a decisive moment for cosmology. The last 25 years have seen the consolidation of this component, called dark energy, which ... -
Precision Low Temperature Calorimetry and Susceptibility of Magnetic Pyrochlores
(University of Waterloo, 2018-09-19)Spin-ice models feature the same statistical disorder as water ice, which is identified as the source of zero-point entropy. Gapped topological excitations with properties of monopoles are associated with the violation of ... -
Predicting nonpolymeric materials structure with real-space self-consistent field theory
(APS publishing, 2006-02-17)Polymer self-consistent field theory of the Edwards-Helfand kind is the state-of-the-art method for predicting the morphologies of block copolymer materials. The methodology of block copolymer self-consistent field theory ... -
Predicting the Mesophases of Copolymer-Nanoparticle Composites
(American Association for the Advancement of Science, 2001)The interactions between mesophase-forming copolymers and nanoscopic par- ticles can lead to highly organized hybrid materials. The morphology of such composites depends not only on the characteristics of the copolymers, ... -
Predicting the phases of a two-dimensional hard-rod system with real-space self-consistent field theory
(APS publishing, 2006-10-16)Polymer self-consistent field theory numerical tools are applied to a two-dimensional hard-rod colloidal system. Rods are represented through an interaction site model density functional theory that is derived and expressed ... -
Predicting the thioflavin fluorescence of retinal amyloid deposits in association with Alzheimer’s disease and differentiating amyloid protein from alpha-syn
(University of Waterloo, 2020-09-02)Alzheimer’s disease (AD) is a neurodegenerative disease and the most common cause of dementia. According to the World Health Organization (WHO) in 2019, dementia affects around 50 million people worldwide and this number ... -
Prehydrated Electron and Its Role in Ionizing Radiation Induced DNA Damage and Molecular Mechanisms of Action of Halogenated Sensitizers for Radiotherapy of Cancer
(University of Waterloo, 2012-10-05)Despite advances in technology and understanding of biological systems in the past two decades, modern drug discovery is still a lengthy, expensive, difficult and inefficient process with low rate of new therapeutic ... -
Probing Accretion Turbulence in the Galactic Centre with EHT Polarimetry
(University of Waterloo, 2019-01-09)We explore the origin and the influence of the interstellar scattering on the observation of Sgr A*, and the method to mitigate this scattering via Event Horizon Telescope (EHT) polarimetry. Interstellar scattering is due ... -
Probing Dark Matter from the Galaxy to the Cosmic Web
(University of Waterloo, 2020-01-23)Dark matter, although invisible, accounts for the majority of matter of the universe. How this invisible component affects cosmic structure formation is one of the primary lines of inquiry in physical cosmology, and the ...