Browsing Physics and Astronomy by Title
Now showing items 108-127 of 767
-
Correlation harvesting in the presence of Unruh and Hawking effects
(University of Waterloo, 2023-07-14)Quantum field theory (QFT) in curved spacetime is a study of quantum fields under the influence of the relativistic motion of particles or spacetime curvature. The famous outcomes of this subject are the Unruh and Hawking ... -
Cosmic Acceleration As Quantum Gravity Phenomenology
(University of Waterloo, 2010-09-22)The discovery of cosmic acceleration has prompted the need for a new understanding of cosmology. The presence of this acceleration is often described as the dark energy problem or the Lambda problem.The simplest explanation ... -
Cosmic Atoms: from Causal Sets to Clusters
(University of Waterloo, 2014-08-19)This thesis is a collection of works which seek to address certain aspects of the following puzzles: quantum gravity, initial conditions of the universe, the cosmological constant problem, and baryonic processes in clusters ... -
Cosmological beam plasma instabilities
(University of Waterloo, 2017-08-24)Blazars are the main source of extragalactic very high energy gamma-rays. These gamma rays annihilate on the extragalactic background light, producing electron-positron pair beams with TeV energies. The pair beams are very ... -
Cosmological Results and Implications in Effective DGP
(University of Waterloo, 2009-01-26)We study a simple extension of the decoupling limit of boundary effctive actions for the Dvali-Gabadadze-Porrati model, by covariantizing the π lagrangian and coupling to gravity in the usual way. This extension agrees ... -
Cosmological Tests of Causal Set Phenomenology
(University of Waterloo, 2017-09-20)Causal Set Theory is an approach to Quantum Gravity that postulates that the fundamental structure of a spacetime manifold is a Lorentz Invariant discrete structure endowed with a causal order from which the geometry and ... -
Cosmology with Cluster Structural Properties
(University of Waterloo, 2023-06-23)Galaxy clusters are massive objects composed of hundreds or thousands of galaxies, hot gas and an extended dark matter (DM) halo. They are the largest gravitationally bound structures in the Universe. As such, they result ... -
Creating and probing laser-cooled atomic ensembles inside a hollow-core optical fibre
(University of Waterloo, 2024-01-26)A laser-cooled atomic ensemble confined inside a hollow-core optical fiber offers a unique platform for enhanced light-matter interactions and their applications. At the same time, transferring a cloud of laser-cooled ... -
Crystallization Studies of Highly Monodisperse Oligomeric Poly(Ethylene Oxide)
(University of Waterloo, 2018-12-13)Poly(ethylene oxide) is one of the most intensively studied polymers in terms of crystallization, because of its linear structure. In this thesis the chapters are organized in a self-contained fashion, with a general ... -
Customized nonlinearity shaping in imperfect or variable waveguides
(University of Waterloo, 2019-05-31)Generation of high-quality single photons via heralded parametric downconversion re- quires careful design of spectral correlations in down-converted photon pairs. One step in this design process involves customized ... -
Cylindrical colloids on a fluid membrane
(University of Waterloo, 2009-05-22)We theoretically study the adhesion and membrane-mediated interaction of cylindrical colloids to a flat fluid membrane. There are two ways to approach this problem. The first way, based on energy, requires finding the ... -
Dark Matter and Neutrinos in the Foggy Universe
(University of Waterloo, 2019-01-07)Dark matter is predicted to be the main contribution to the matter content in the universe, in addition to ordinary baryonic matter such as protons and neutrons. However, we are limited in our knowledge of the nature of ... -
The data processing pipeline for the Herschel1 - HIFI instrument
(Elsevier, 2019-04)The HIFI data processing pipeline was developed to systematically process diagnostic, calibration and astronomical observations taken with the HIFI science instrument as part of the Herschel mission. The HIFI pipeline ... -
Data-driven and Hamiltonian-driven Quantum Simulations with Generative Models
(University of Waterloo, 2022-01-12)In the era of noisy intermediate-scale quantum devices (NISQ), a paradigm shift is occurring in the numerical physics community to transition towards developing algorithms that facilitate experimental realizations of quantum ... -
Decoherence by a non-Markovian and non-Gaussian Environment
(University of Waterloo, 2013-01-25)This thesis studies a spin-star model and an open spin-star model. The spin-star model is exactly solvable, and the approximation methods can be applied and compared with the exact solution. As this model is shown to be ... -
Decoupling of a neutron interferometer from temperature gradients
(AIP Publishing, 2016-12-16)Neutron interferometry enables precision measurements that are typically operated within elaborate, multi-layered facilities which provide substantial shielding from environmental noise. These facilities are necessary to ... -
Decoy-State Quantum Key Distribution with Arbitrary Phase Mixtures and Phase Correlations
(University of Waterloo, 2022-01-26)We formulate a general method to find bounds on the statistics of states passing through an unknown channel from the statistics of another set of states. We pay special attention to the application of this method to ... -
Defects and Boundaries in Quantum Field Theories
(University of Waterloo, 2021-07-29)We discuss some aspects of defects and boundaries in quantum field theories (QFTs) and their applications in revealing non-perturbative aspects of QFTs in combination with other techniques, including integrability. ... -
Demonstration of a Tunable Coupler Suitable for Investigating Ultra-strong Coupling Light-matter Interactions in Superconducting Devices
(University of Waterloo, 2022-05-02)One of the most ubiquitous processes in nature is the interaction of matter and an electromagnetic field which is well described using the spin-boson model. These light- matter interactions are specified by an interaction ... -
The Dependence of Halo Mass on Galaxy Size at Fixed Stellar Mass Using Weak Lensing
(University of Waterloo, 2017-04-24)Stellar mass has been shown to correlate with halo mass, but with significant scatter. The stellar mass-size and luminosity-size relationships of galaxies also show significant scatter in galaxy sizes for a fixed stellar ...