In the theory of false vacuum eternal inflation the false vacuum
decays whenever the inflaton potential has multiple minima. The
decay means a nucleation of a bubble with a different density in
vacuum energy. Inflation may occur within the bubble eventually
giving way to the hot big bang with a subsequent evolution that is
consistent with current observations. Interest in this picture has
recovered as it became generally accepted that a compactification
of the extra dimensions in string theory leads to an effective
potential with a vast number of minima, the landscape of string
theory. In the first part of this thesis the effects that can be
expected if the surrounding of the bubble is dynamical are
elucidated. In particular, it is shown how the bubble evolves in
the presence of a fluid in the background, and moreover, the
effects of a radial inhomogeneity in energy density and spatial
curvature. Second, collisions of bubbles would disturb the
homogeneity and isotropy of their interior, which, in turn, could
lead to observable effects in the cosmic microwave background
radiation. It will be clarified whether Minkowski functionals are a
promising tool to detect such signals.
General
Imprint: |
Sudwestdeutscher Verlag Fur Hochschulschriften AG
|
Country of origin: |
United States |
Release date: |
February 2012 |
First published: |
February 2012 |
Authors: |
Simon Dennis
|
Dimensions: |
229 x 152 x 7mm (L x W x T) |
Format: |
Paperback - Trade
|
Pages: |
112 |
ISBN-13: |
978-3-8381-3154-2 |
Categories: |
Books >
Science & Mathematics >
Physics >
General
|
LSN: |
3-8381-3154-1 |
Barcode: |
9783838131542 |
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