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Archivio digitale delle tesi discusse presso l’Università di Pisa

Tesi etd-08232021-175021


Tipo di tesi
Tesi di laurea magistrale
Autore
SANNA, BRUNO
URN
etd-08232021-175021
Titolo
Inflationary models compatible with the Trans-Planckian Censorship Conjecture and the Cosmological Bounce in Teleparallel Gravity
Dipartimento
FISICA
Corso di studi
FISICA
Relatori
relatore Prof. Marozzi, Giovanni
correlatore Dott. Sebastiani, Lorenzo
Parole chiave
  • bouncing cosmology
  • constant roll inflation
  • inflation
  • modified gravity
  • Trans-Planckian problem
Data inizio appello
15/09/2021
Consultabilità
Completa
Riassunto
Starting from a review of cosmological perturbations in the inflationary paradigm, the recently proposed Trans-Planckian Censorship Conjecture (TCC) is analyzed; furthermore, I study and formally develop the constraints that the TCC poses on some commonly used viable models of inflation (e.g. single-field, f(R) models, constant-roll), concluding that a different approach to early universe cosmology may be the natural consequence of the conjecture. In light of this consideration, I then move on to alternative scenarios, namely bouncing cosmologies: specifically, after reviewing the Teleparallel Gravity framework, bouncing solutions in the f(T) modified gravity scenario are analyzed.
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