Explorations in higher-derivative gravity: holography and astrophysics
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http://hdl.handle.net/10347/31503
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Título: | Explorations in higher-derivative gravity: holography and astrophysics |
Autor/a: | Rivadulla Sánchez, Alberto |
Dirección/Titoría: | Edelstein Glaubach, José Daniel |
Centro/Departamento: | Universidade de Santiago de Compostela. Escola de Doutoramento Internacional (EDIUS) Universidade de Santiago de Compostela. Programa de Doutoramento en Física Nuclear e de Partículas |
Palabras chave: | Gravity | black holes | holography | theoretical physics | |
Data: | 2023 |
Resumo: | This thesis investigates the role of higher-derivative corrections in the gravity action across various scenarios. The first part focuses on the domain of holography, and in this context we propose a method for holographic renormalization valid for general theories in up to 5 dimensions. Subsequently, we employ the framework of AdS/CFT to examine the effect of cubic-curvature terms in a system known as the holographic superconductor. Besides the curvature tensors, it is possible to construct corrections with contractions of other fields. In particular, we consider theories that are dual to a CFT with a non-minimally coupled chemical potential. Finally, the thesis transitions into the field of astrophysics, and we study the impact of higher-curvature terms in processes of accretion of matter by black holes. |
URI: | http://hdl.handle.net/10347/31503 |
Dereitos: | Attribution-NonCommercial-NoDerivatives 4.0 Internacional |
Coleccións
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- Área de Ciencias [953]
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