Aspects of cosmology and black hole physics in string theory
Abstract/Contents
- Abstract
- Over the past few decades string theory has provided us with many novel ideas and models of physics where the interplay of gravity and quantum mechanics is crucial. In particular it has been widely used in the study of black hole physics and cosmology. This thesis describes three aspects of string theory's application in these two fields. First we consider open string pair production effects near hyperbolic black holes in Anti-de Sitter space (AdS). It is shown that these black holes can decay by radiating D-branes and there can be non-adiabatic pair production of open strings stretched between those radiated branes. In the second part we switch to cosmology, where we consider two models inspired by axion monodromy, which is very natural in string theory. First we study heavy fermion production effects, which come from the assumption that the fermion mass is modulated by the inflaton field, and its signature on primordial N-spectra. A detailed comparison between this effect and the effect of boson production is made. Lastly, we consider the case where there are a large number of axions that collectively drive inflation. It is shown that the spectral index and the tensor-to-scalar ratio depend on the distribution of parameters of the axion fields. This thesis is based on papers [1, 2, 3].
Description
| Type of resource | text |
|---|---|
| Form | electronic; electronic resource; remote |
| Extent | 1 online resource. |
| Publication date | 2017 |
| Issuance | monographic |
| Language | English |
Creators/Contributors
| Associated with | Wenren, Danjie |
|---|---|
| Associated with | Stanford University, Department of Physics. |
| Primary advisor | Silverstein, Eva, 1970- |
| Thesis advisor | Silverstein, Eva, 1970- |
| Thesis advisor | Kachru, Shamit, 1970- |
| Thesis advisor | Shenker, Stephen Hart, 1953- |
| Advisor | Kachru, Shamit, 1970- |
| Advisor | Shenker, Stephen Hart, 1953- |
Subjects
| Genre | Theses |
|---|
Bibliographic information
| Statement of responsibility | Danjie Wenren. |
|---|---|
| Note | Submitted to the Department of Physics. |
| Thesis | Thesis (Ph.D.)--Stanford University, 2017. |
| Location | electronic resource |
Access conditions
- Copyright
- © 2017 by Danjie Wenren
- License
- This work is licensed under a Creative Commons Attribution Non Commercial 3.0 Unported license (CC BY-NC).
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