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Author ORCID Identifier



Open Access Dissertation

Document Type


Degree Name

Doctor of Philosophy (PhD)

Degree Program


Year Degree Awarded


Month Degree Awarded


First Advisor

Lorenzo Sorbo

Second Advisor

David Kastor

Third Advisor

Michael Ramsey-Musolf

Fourth Advisor

Martin Weinberg

Subject Categories

Cosmology, Relativity, and Gravity | Elementary Particles and Fields and String Theory | Other Physics


This dissertation proposal explores the production of present day cosmological observables which might have been produced during the inflationary era. The first observable is the current net electric charge of our observable universe produced by charge fluctuations during inflation. Next, we examine the possibility of a signal in the primordial gravitational wave power spectrum produced by a scalar field with a time dependent mass. Finally, we examine primordial magnetic fields produced during inflation through the Ratra model coupling with the Schwinger effect.