Brane inflation: Swampland criteria, TCC, and reheating predictions

Abolhassan Mohammadi, Tayeb Golanbari, Salah Nasri, Khaled Saaidi

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

We consider inflation in a five -dimensional space time with the inflaton field confined to live on a brane world. In this scenario, we study different types of potentials for the inflaton, discuss their observational consequences, and compare with data. We find that some class of potentials are in good agreement with observation and that the value of the inflaton field can be sub-Planckian. Moreover, we investigate the swampland criteria in this scenario and determine the consistency of the model with the conjectures. Doing so, we could determine models that simultaneously satisfy both observational data and swampland criteria. More constraints are applied by studying the reheating phase where the acceptable range for the reheating temperature imposes some bounds on the models. As the last step, the result of trans-Planckian censorship conjecture for the model is considered where it is shown the constraint of TCC will be very strong and it could be used to apply limits on the brane tension.

Original languageEnglish
Article number102734
JournalAstroparticle Physics
Volume142
DOIs
Publication statusPublished - Sep 2022

Keywords

  • Brane inflation
  • Reheating
  • Swampland criteria
  • Trans-Planckian censorship conjecture

ASJC Scopus subject areas

  • Astronomy and Astrophysics

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