Date of Award

Spring 4-29-2022

Document Type

Thesis

Degree Name

Bachelor of Arts

Department

Physics

First Advisor

Tom Giblin

Abstract

The study of high energy systems in cosmology remains one of the most exciting avenues to probe beyond-SM physics. In this thesis, I present the results of three research projects I have undertaken in Kenyon's cosmology lab, all centered around modeling high-energy phenomena using GABE, our nonlinear scalar field evolver. I first present our findings which show that a nonlinear Early Dark Energy field evolved alongside matter and radiation fluids generates a measure for the ISW above current sensitivity levels. I then show how quartic models of the inflaton undergo parametric resonance, but that this resonance is not powerful enough to produce primordial black holes. Finally, I will show how the inclusion of fully-nonlinear interaction terms may affect the outgoing form of a scalar field wave packet scattered off of a black hole in trumpet coordinates.

Rights Statement

All rights reserved. This copy is provided to the Kenyon Community solely for individual academic use. For any other use, please contact the copyright holder for permission.

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