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Perturbations of an expanding brane. / Andrew Buxton
Swansea University Author: Andrew Buxton
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Abstract
Motivated by the study of the cosmology of brane-worlds we begin by inducing vacuum decay in a 4+1 space-time assuming that the most likely configuration possesses spherical symmetry, and interpret the wall between the two vacua as a thick brane. We then set out to deduce the spectrum of perturbatio...
| Published: |
2006
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| Institution: | Swansea University |
| Degree level: | Doctoral |
| Degree name: | Ph.D |
| URI: | https://cronfa.swan.ac.uk/Record/cronfa42432 |
| Abstract: |
Motivated by the study of the cosmology of brane-worlds we begin by inducing vacuum decay in a 4+1 space-time assuming that the most likely configuration possesses spherical symmetry, and interpret the wall between the two vacua as a thick brane. We then set out to deduce the spectrum of perturbations about this solution with a view to making predictions about the CMB powder spectrum of such a brane. However, we find that the instability of the spherically symmetric solution causes focusing of energy at the origin, which we suggest would result in black hole formation. |
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| Keywords: |
Theoretical physics. |
| College: |
Faculty of Science and Engineering |