Graduate theses
Current Record: 12 of 195
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Title |
On the spacetime of the extreme Kerr throat |
Alternative Title |
Σχετικά με τον χωρόχρονο του ακραίου λαιμού Κerr |
Author
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Ζουμής, Αθανάσιος
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Thesis advisor
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Πορφυριάδης, Αχιλλέας
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Abstract |
This thesis explores the application of Effective Field Theory (EFT) as an extension of
General Relativity (GR), focusing on the Near-Horizon Extreme Kerr (NHEK) geometry.
This study begins by introducing the essential concepts of Kerr spacetime in Chapter 1,
such as symmetries, Killing Fields and singularities. Then, it proceeds in a brief presen-
tation on some exotic features associated with the rotating nature of Kerr. Chapter 2 is
focused on deriving the NHEK metric and studying its key aspects concluding with the
demonstration of the wave equation in that background. Finally, in Chapter 3 lies the
motivation for utilizing purely gravitational EFT in GR. This work formulates an EFT
which incorporates higher order corrections in the Einstein-Hilbert Lagrangian based on
the work of [1]. Further on, it investigates the EFT-corrected NHEK geometry along with
the impact of these corrections in the wave equation. It concludes with the derivation of
the EFT-corrected radial and angular wave equations. The solution of these equations
appears to be non-trivial and therefore further work on them is in order.
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Language |
English |
Issue date |
2024-07-11 |
Collection
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School/Department--School of Sciences and Engineering--Department of Physics--Graduate theses
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Type of Work--Graduate theses
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Permanent Link |
https://elocus.lib.uoc.gr//dlib/c/d/4/metadata-dlib-1718715089-132677-10887.tkl
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Views |
215 |