Dark Energy, Cosmological Singularities and their Quantum Fate: Insights from Scalar-Tensor Theories and Metric () Gravity
This PhD dissertation explores scalar-tensor theories and other modifications to general relativity to address fundamental questions about the origin of the latetime acceleration of the Universe and the role of dark energy in shaping its ultimate fate. In particular, our research has focused on scal...
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| Tipo de recurso: | tesis doctoral |
| Fecha de publicación: | 2026 |
| País: | España |
| Institución: | Universidad Complutense de Madrid (UCM) |
| Repositorio: | Docta Complutense |
| Idioma: | inglés |
| OAI Identifier: | oai:docta.ucm.es:20.500.14352/132492 |
| Acceso en línea: | https://hdl.handle.net/20.500.14352/132492 |
| Access Level: | acceso abierto |
| Palabra clave: | 524.8(043.2) Física (Física) 2101 Cosmología y Cosmogonía |
| Sumario: | This PhD dissertation explores scalar-tensor theories and other modifications to general relativity to address fundamental questions about the origin of the latetime acceleration of the Universe and the role of dark energy in shaping its ultimate fate. In particular, our research has focused on scalar-tensor theories known as kinetic gravity braiding and on modification of the Einstein-Hilbert action in the form of metric f(R) theories of gravity, in both of which gravitational waves trivially propagate at the speed of light... |
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