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Bouncing Universes: Simple Cosmological Models with a Scalar Field
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- Author / Creator
- Cukali, Elsad
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In this thesis, we consider a homogeneous and isotropic closed model of the Universe with a real massive scalar field. Hawking showed that if such a model of the Universe is fine-tuned, it can have an infinite number of bounces. We study the case for
the Universe that is microscopically time-symmetric about a homogeneous, isotropic bounce. We begin by considering a classical periodic solution in which a Universe has a time-symmetric bounce and expands to a large maximum size with a fixed large number of zero crossings of the scalar field between each pair of consecutive bounces.
After the inflation, the scalar field oscillates with a phase constant. The change in this oscillation phase will quantify a perturbation of the solution and we are seeking to find the probability for two successive bounces. -
- Subjects / Keywords
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- Graduation date
- Fall 2022
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- Type of Item
- Thesis
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- Degree
- Master of Science
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- License
- This thesis is made available by the University of Alberta Library with permission of the copyright owner solely for non-commercial purposes. This thesis, or any portion thereof, may not otherwise be copied or reproduced without the written consent of the copyright owner, except to the extent permitted by Canadian copyright law.