Browsing Physics and Astronomy by Title
Now showing items 249-268 of 767
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Flag Fault-Tolerant Error Correction with Qudits
(University of Waterloo, 2022-01-20)In this thesis, I explore fault-tolerant quantum error correction using qudits. I show that a specific flag-fault-tolerant procedure for the five-qubit code may be extended to work on the five qudit code for any prime ... -
Flags and Error Weight Parities: A Development of Fault-tolerant Quantum Computation with Few Ancillas
(University of Waterloo, 2021-10-13)In quantum computation, errors in a quantum circuit arising from its interaction with the environment is one of the biggest obstacles to building large-scale quantum computers. One way to deal with such errors is using ... -
Fluctuation correction for the critical transition of symmetric homopolymer blends
(AIP, 2017-07)Monte Carlo simulations are performed on structurally symmetric binary homopolymer blends over a wide range of invariant polymerization indexes, N. A finite-size scaling analysis reveals that certain critical exponents ... -
Fluctuation effects in blends of A+B homopolymers with AB diblock copolymer
(AIP, 2018-05)Field-theoretic simulations (FTS) are performed on ternary blends of A- and B-type homopolymers of polymerization N_h and symmetric AB diblock copolymer of polymerization N_c. Unlike previous studies, our FTS are conducted ... -
Forays into Mathematical Physics
(University of Waterloo, 2007-09-27)Two different works in mathematical physics are presented: A construction of conformal infinity in null and spatial directions is constructed for the Rainbow-flat space-time corresponding to doubly special relativity. ... -
Fragmentation Dynamics of Triatomic Molecules in Femtosecond Laser Pulses Probed by Coulomb Explosion Imaging
(University of Waterloo, 2013-06-19)In this thesis we have utilized few-cycle pulses in the range 10-15s, to initiate CE to allow us to image the structure, dynamics, and kinetics of ionization and dissociation of triatomic molecules. We have made a series ... -
Free Space Quantum Key Distribution to Moving Platforms
(University of Waterloo, 2017-08-24)The quantum space age has officially begun and many important milestones and achievements have recently been demonstrated, such as the exciting launch and results of the first quantum demonstration satellite, Micius. ... -
Frontiers of Gravity: Astrophysical Environments, Ringdown Nonlinearities and the Semiclassical Approximation
(University of Waterloo, 2021-01-22)Einstein’s general relativity is based on a tensorial, nonlinear equation for the spacetime metric. The gravitational interaction is however so weak that, in most circumstances, the equations can be solved perturbatively. ... -
Fundamental Tests of Quantum Mechanics using Two-Photon Entanglement
(University of Waterloo, 2014-04-30)In this thesis, we experimentally test fundamental properties of quantum mechanics, namely non-locality (in the form of three new families of Bell's inequalities) and the symmetry of envariance. To accomplish these we ... -
Galactic Molecular Dust Clumps using SCUBA-2 - Effects of HII Regions on Star Formation
(University of Waterloo, 2018-09-21)I present findings from a broad array of SCUBA-2 observations. The sample consists of 38 SCUBA-2 images targeted near mature, galactic, HII regions of the Sharpless "Sh-2" or Blitz-Stark-Fich "BFS" catalogue. In 31 of those ... -
Galaxy Formation at Redshift ~0.75: A Low Mass Survey & The Role of Environment
(University of Waterloo, 2011-09-29)The majority of galaxy formation studies which explore beyond local redshifts do not typically probe down to the dwarf galaxy stellar mass range of ∼ 10^9 Msun . Thus trends in the observed evolution or characteristics of ... -
Galaxy Morphology In Cluster Environments
(University of Waterloo, 2017-08-25)It is a well known fact that cluster environments favour early-type galaxies over late- type. However, the physical origin of the correlation remains uncertain. We focus specifically on the external environmental mechanisms ... -
Galaxy Transformations in the Last 5 Billion Years
(University of Waterloo, 2010-09-01)It has become clear that the global star formation rate in the Universe has been decreasing since at least z~1, and blue, star-forming galaxies are transformed into red, passive galaxies through one or more processes. The ... -
Gauge Models of Topological Phases and Applications to Quantum Gravity
(University of Waterloo, 2018-06-26)In 2+1 dimensions, gravity is an SU(2) topological gauge theory that can be written as BF theory. In the condensed matter literature, the Hamiltonian realization of BF theory for finite groups is known as the Kitaev model. ... -
Gauge Theory Dynamics and Calabi-Yau Moduli
(University of Waterloo, 2014-07-02)We compute the exact partition function of two dimensional N=(2,2) supersymmetric gauge theories on S². For theories with SU(2|1)_A invariance, the partition function admits two equivalent representations corresponding to ... -
Generalized holographic dualities for metric gravity & Quantum geometry based on area variables
(University of Waterloo, 2020-09-18)Holography holds promise for simplifying computations in quantum gravity. In part I of this thesis, we construct holographic boundary theories for linearized gravity, for a general family of finite or quasi-local boundaries, ... -
Generating Functionals for Spin Foam Amplitudes
(University of Waterloo, 2014-09-25)Various approaches to Quantum Gravity such as Loop Quantum Gravity, Spin Foam Models and Tensor-Group Field theories use invariant tensors on a group, called intertwiners, as the basic building block of transition amplitudes. ... -
Generation of Short Laser Pulses by Using Hollow Fibre and Chirped Mirror Compressor System
(University of Waterloo, 2017-10-23)A FEMTOLASERS hollow core silicon fibre of length 1 m and 250μm inner diameter was set up in the lab in Waterloo with the purpose of generating sub 10fs pulses for Coulomb Explosion Imaging (CEI). The input laser was a new ... -
Geometry of Quantum States from Symmetric Informationally Complete Probabilities
(University of Waterloo, 2013-08-06)It is usually taken for granted that the natural mathematical framework for quantum mechanics is the theory of Hilbert spaces, where pure states of a quantum system correspond to complex vectors of unit length. These vectors ... -
Gravitational Thermodynamics: From Black Holes to Holography
(University of Waterloo, 2021-06-01)The subject of gravitational thermodynamics lies at the center of numerous fields of study, many of which may seem disconnected, yet have proven to be deeply entwined. This thesis examines two primary facets of this subject, ...