Boson stars, baby universes and wormholes in a modified gravity scenario

• Autores: Andreu Sales Masó Ferrando
• Directores de la Tesis: Gonzalo J. Olmo (dir. tes.), Nicolás Sanchis Gual (codir. tes.)
• Lectura: En la Universitat de València ( España ) en 2023
• Idioma: inglés
• Número de páginas: 303
• Tribunal Calificador de la Tesis: Diego Rubiera García (presid.), Isabel Cordero Carrión (secret.), Aneta Magdalena Wojnar (voc.)
• Programa de doctorado: Programa de Doctorado en Física por la Universitat de València (Estudi General)
• Materias:
  • Astronomía y astrofísica
    • Cosmología y cosmogonía
      • Gravitación
      • Estrellas
  • Física
    • Física teórica
      • Teoría de la relatividad
• Enlaces
  • Tesis en acceso abierto en: TESEO
• Resumen

  • The need for a well-behaved gravity theory at high energies demands a multidisciplinary approach, incorporating a wide range of viewpoints, from sophisticated mathematical tools and statistical techniques to ambitious experiments. Achieving this goal requires a deep understanding of our fundamental theories, their capabilities and limitations, as well as an improvement of the main roads in them are essential steps. This PhD thesis is situated within this context. We investigate the existence and properties of exotic compact objects, such as boson stars, within the framework of Palatini f(R) gravity. We will observe that their gravitational collapse may give rise to the formation of wormhole structures, specifically, baby universes. Consequently, we will analyze the characteristic signatures that different types of wormhole may leave in various observables.