Einstein–Cartan cosmologies

Sergio Bravo Medina, Marek Nowakowski, Davide Batic

Research output: Contribution to journalArticlepeer-review

19 Scopus citations

Abstract

Cosmologies based on General Relativity encompassing an anti-symmetric connection (torsion) can display nice desirable features as the absence of the initial singularity and the possibility of inflation in the early stage of the universe. After briefly reviewing the standard approach to the cosmology with torsion, we generalize it to demonstrate that several theories of torsion gravity are possible using different choices of the diffeomorphic invariants in the Lagrangians. As a result, distinct cosmologies emerge. In all of them it is possible that the universe avoids the initial singularity and passes through an initial accelerated expansion. Differences between these theories are highlighted.

Original languageBritish English
Pages (from-to)64-108
Number of pages45
JournalAnnals of Physics
Volume400
DOIs
StatePublished - Jan 2019

Keywords

  • Einstein–Cartan
  • Spin fluid
  • Torsion
  • Torsion gravity

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