Browsing Physics and Astronomy by Title
Now showing items 325-344 of 769
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An Investigation and Application of the Finite Difference Time Domain Method as a Tool for Solving Equalization Problems in Acoustics
(University of Waterloo, 2010-01-25)This thesis investigates the issues in deriving the Finite Di erence Time Domain Method, including the derivation of a unique method for exciting an FDTD system that is physically realistic in terms of acoustics. It is ... -
An investigation of low energy quasiparticle excitations via thermal conductivity measurements
(University of Waterloo, 2012-10-26)Thermal conductivity measurements are made on a variety of systems in order to probe low energy quasiparticle excitations. In particular, thermal conductivity measurements were made on the iron based superconducting ... -
An investigation of low energy quasiparticle excitations via thermal transport measurements
(University of Waterloo, 2017-06-16)Thermal transport measurements can provide a unique perspective of the nature of a system by exploring the behaviour of the low energy excitations from the ground state. Delocalized quasiparticle excitations can affect ... -
Investigation of Photon Interactions with Semiconductor Quantum Dot Devices for Quantum Communication Applications
(University of Waterloo, 2020-01-21)A major goal in the field of quantum communication is to achieve long-distance (>100 km) transmission of quantum information, which would allow for the formation of a global quantum network. Devices called 'quantum repeaters' ... -
Investigations of InAsP/InP Semiconductor Devices for Quantum Communication Technologies
(University of Waterloo, 2015-01-19)This thesis presents a set of magnetotransport experiments which explore the advantages of InAsP/InP quantum well material and quantum dot structures for spin/photon devices, with a view towards quantum communication. The ... -
Isotropic-Helicoidal Transition of Semiflexible Polymers Confined to a Spherical Surface
(University of Waterloo, 2009-01-15)A semiflexible polymer confined to a spherical surface is used as a basic model for understanding DNA conformation in restricted space. By means of Monte Carlo simulation for a bead-rod chain generated on a spherical ... -
Large-Scale Filaments From Weak Lensing
(University of Waterloo, 2015-10-01)In the context of non-linear structure formation, a web of dark filaments are expected to intersect the high density regions of the universe, where groups and clusters of galaxies will be forming. In this work we have ... -
Laser-Based Imaging of Novel Charge Density Wave and Superconducting Materials
(University of Waterloo, 2021-06-02)The following thesis presents experimental study of two crystalline materials which show correlated electron phases. The first material 1T-TaS2 is a two-dimensional van-der-Waals material. This family of materials ... -
Laser-cooled Atomic Ensembles in Hollow Optical Fibers
(University of Waterloo, 2021-05-06)This thesis explores hollow-core fibres as a platform for quantum optics experiments with laser-cooled atomic ensembles. The non-diffracting, tightly-confined guided modes of these fibers grant us a ~µm-wide one-dimensional ... -
Laser-initiated Coulomb explosion imaging of small molecules
(University of Waterloo, 2008-09-02)Momentum vectors of fragment ions produced by the Coulomb explosion of CO2z+ (z = 3 - 6) and CS2z+ (z = 3 - 13) in an intense laser field (~50 fs, 1 x 1015 W/cm2) are determined by the triple coincidence imaging technique. ... -
Late-universe signals in the microwave sky: extragalactic dust, electrons, and other baryonic effects
(University of Waterloo, 2021-06-07)This thesis collects much of the work I have done over the last four years as a PhD student. It has two focuses. Part 1 discusses gravitational radiation emitted from two maximally charged black holes in Einstein--Maxwell--dilaton ... -
Line-Field Spectral Domain Optical Coherence Tomography: Design and Biomedical Applications
(University of Waterloo, 2024-05-10)Corneal diseases such as keratoconus and Fuchs' dystrophy lead to the dysfunction of the cornea, which can result in vision loss. Early-stage detection at the cellular level provides the opportunity for treatment that slows ... -
Line-Scan Spectral-Domain Optical Coherence Tomography for Cellular Resolution Structural and Vascular Imaging of Biological Tissues
(University of Waterloo, 2022-06-07)Optical coherence tomography (OCT) is an optical interferometric technique for non-invasive contactless imaging of the cellular-level structures of biological tissues. However, the application of OCT for in-vivo volumetric ... -
Liquid Crystal State NMR Quantum Computing - Characterization, Control and Certification
(University of Waterloo, 2013-08-30)Quantum computers offer the possibility of solving some problems more efficiently than their classical counterparts. The current forerunner in the experimental demonstration of quantum algorithms is Nuclear Magnetic Resonance ... -
Local Group Analogues
(University of Waterloo, 2012-09-27)The abundance of satellite galaxies is a critical small-scale test of the standard cosmological model. From comparing the predictions of structure formation in simulations with observations of Local Group dwarf galaxies ... -
Locality and Exceptional Points in Pseudo-Hermitian Physics
(University of Waterloo, 2023-05-26)Pseudo-Hermitian operators generalize the concept of Hermiticity. Included in this class of operators are the quasi-Hermitian operators, which define a generalization of quantum theory with real-valued measurement outcomes ... -
Loop Optimization of Tensor Network Renormalization: Algorithms and Applications
(University of Waterloo, 2019-05-22)Loop optimization for tensor network renormalization (loop-TNR) is a real-space renormalization group algorithm suitable for studying 1+1D critical systems. While the original proposal by Yang et al. focused on classical ... -
The Low Temperature Magnetic Relaxation of Dy₂Ti₂O₇
(University of Waterloo, 2012-09-26)The recent formulation of the monopole picture of spin ice[1, 2, 3], has lead to several studies of the signatures of monopole excitations[2, 4], as well as studies of the motion of magnetic monopoles[5, 6, 7]. In this ... -
Low-temperature characterization of dielectric loss at microwave frequencies in aluminum oxide
(University of Waterloo, 2015-04-09)Superconducting quantum devices have gained increasing interest over the past 15 years because of their role as promising candidates for implementing a large-scale quantum computer and as ultra-sensitive detectors. ... -
Machine Learning and Optimization Techniques for Trapped-ion Quantum Simulators
(University of Waterloo, 2021-08-31)In recent years, quantum simulators have been the focus of intense research due to their potential in unraveling the inner workings of complex quantum systems. The exponential scaling of the Hilbert space of quantum systems ...