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University of Illinois at Urbana-Champaign
Some problems of quantum cosmology and dark matter physics
Abstract
dc:descriptionIn this thesis we study the quantum cosmology of the string universe obtained by embedding the Robertson-Walker metric in the non-linear σ model. We find that initially the universe exists in a series of metastable bound states with the scale factor taking discrete values. Then it tunnels through a barrier and comes out in an inflationary state. This tunneling (or evolution in imaginary time) also has the effect of heating up the matter field so that we have a condition of chaotic inflation. Our asymptotic solutions agree with those obtained from the classical Einstein equations.
Degree
thesis:*- Name thesis:degree_name
- Ph.D.
- Level thesis:degree_level
- Dissertation
- Discipline thesis:degree_discipline
- Astronomy
- Grantor
- University of Illinois at Urbana-Champaign
- Year dc:date
- 2011
Author and committee
dc:creator, dc:contributor.*- Author dc:creator
-
- Wang, Jin
- Contributors dc:contributor
-
- Nanopoulos, Dimitri
Subjects
dc:subject × 1Rights
dc:rights- Statement dc:rights
-
- Copyright 1991 Wang, Jin
- Language dc:language
- eng
Identifiers
dc:identifier.*- Identifier
-
AAI9211025
(UMI)AAI9211025 - OAI identifier oai:identifier
- oai:www.ideals.illinois.edu:2142/20571