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University of Houston-Clear Lake

Numerical Relativity as a Tool for Studying the Early Universe

University of Houston-Clear Lake via YouTube

Overview

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Explore the application of numerical relativity in studying the early universe through this comprehensive lecture by David Garrison, Associate Professor and Chair of Physics at UHCL. Delve into the development of large-scale simulations that model dynamical processes in the early cosmos, incorporating interactions between dark matter, scalar perturbations, gravitational waves, magnetic fields, and turbulent plasma. Discover how GRMHD codes based on the Cactus framework are utilized to conduct these simulations, offering flexibility in choosing differencing methods at runtime. Gain insights into various aspects of cosmology, including the early universe, gravitational waves, general relativity, inflation, and plasma turbulence. Learn about gravitational wave detection techniques, numerical simulation methods, and the application of Einstein's equations in cosmological contexts. Examine specific tests and results that validate these simulations, providing a deeper understanding of the universe's early stages and evolution.

Syllabus

Introduction
The Early Universe
Gravitational Waves
General Relativity
Sources of gravitational waves
Gravitational wave detection
Laser sensor
Co clocks
Simulations
Differentiation Methods
Numerical Simulations
Gravitational Wave Theory
Evolution Equation
Initial Conditions
Inflation
Hubble
Power spectral density
Results
Plasma Turbulence
Einsteins Equation
Early Universe
Simulation
Cosmological Test
Shock Test

Taught by

College of Science and Engineering

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