Browsing David Garrison by Issue Date
Now showing items 1-10 of 10
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Causal Differencing in ADM and Conformal ADM Formulations: A Comparison in Spherical Symmetry.
(Physical Review D. Volume 62, 2000)Black hole excision is at present the most promising approach to deal with the singularities in black hole spacetimes. The implementation of this technique is done through carefully designed algorithms that exploit the ... -
Numerical analysis of simplified Relic-Birefringent gravitational waves
(Classical and Quantum Gravity 24, 2004)Some theories suggest that gravitational waves created in the early universe may be observable with future gravitational wave interferometers. As a result, identifying the characteristics of these gravitational waves and ... -
Black Hole Spectroscopy: testing general relativity through gravitational-wave observations
(Classical and Quantum Gravity 21, 2004)Assuming that general relativity is the correct theory of gravity in the strong field limit, can gravitational wave observations distinguish between black hole and other compact object sources? Alternatively, can gravitational ... -
Gravity Gradients in LIGO: a proposal for Data Analysis
(Proceedings of the Tenth Marcel Grossman Meeting on General Relativity, 2006)We propose a method to analyze seismic noise data to bound the influence of gravitational gradients affecting the sensitivity of gravitational wave detectors. We present results obtained with data taken at the LIGO Hanford ... -
TESTING BINARY BLACK HOLE CODES IN STRONG FIELD REGIMES: UNDERSTANDING NUMERICAL INSTABILITIES THROUGH COMPUTATIONAL EXPERIMENTS
(LAP Lambert Academic Publishing, 2011)In order to further our understanding of the instabilities which develop in numerical relativity codes, I study vacuum solutions of the cosmological type (T^3 topology). Specifically, I focus on the 3+1 ADM formulation of ... -
A Numerical Simulation of Chern-Simons Inflation
(Advances in Astronomy, 2013)In this work, we present results of numerical simulations of the Chern-Simons Inflation Model proposed by Alexander, Marciano and Spergel. According to this model, inflation begins with a fermion condensate interacting ... -
What Every Successful Physics Graduate Student Should Know
(Smashwords, 2013)This guide is intended for students who are considering pursuing a graduate school program in physics. I chose the title, “What Every Successful Physics Graduate Student Should Know” because I honestly believe that if you ... -
Numerical Relativity as a tool for studying the Early Universe
(Journal of Gravity, 2014)Numerical simulations are becoming a more effective tool for conducting detailed investigations into the evolution of our universe. In this article, we show how the framework of numerical relativity can be used for studying ... -
Invariants in Relativistic MHD Turbulence
(Journal of Modern Physics, 2016)The objective of this work is to understand how the characteristics of relativistic MHD turbulence may differ from those of nonrelativistic MHD turbulence. We accomplish this by studying the ideal invariants in the ... -
Extracting Gravitational Waves Induced by Plasma Turbulence in the Early Universe through an Averaging Process
(Classical and Quantum Gravity 34, 2017)This work is a follow-up to the paper, "Numerical Relativity as a Tool for Studying the Early Universe". In this article, we determine if cosmological gravitational waves can be accurately extracted from a dynamical spacetime ...
