Non-singular non-flat universes

Andrés Felipe Estupiñán Salamanca, Sergio Bravo Medina, Marek Nowakowski, Davide Batic

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

The quest to understand better the nature of the initial cosmological singularity is with us since the discovery of the expanding universe. Here, we propose several non-flat models, among them the standard cosmological scenario with a critical cosmological constant, the Einstein–Cartan cosmology, the Milne–McCrea universe with quantum corrections and a non-flat universe with bulk viscosity. Within these models, we probe into the initial singularity by using different techniques. Several nonsingular universes emerge, one of the possibilities being a static non-expanding and stable Einstein universe.

Original languageBritish English
Article number168727
JournalAnnals of Physics
Volume436
DOIs
StatePublished - Jan 2022

Keywords

  • Big bounce
  • Cosmological models
  • Early universe
  • Non-flat universe
  • Nonsingular universe

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