The dark side of the torsion: dark energy from propagating torsion
Authors
Benisty, D
Guendelman, EI
van de Venn, A
Vasak, D
Struckmeier, J
Stoecker, H
Publication Date
2022Journal Title
EUROPEAN PHYSICAL JOURNAL C
ISSN
1434-6044
Publisher
Springer Science and Business Media LLC
Volume
82
Issue
3
Language
en
Type
Article
This Version
VoR
Metadata
Show full item recordCitation
Benisty, D., Guendelman, E., van de Venn, A., Vasak, D., Struckmeier, J., & Stoecker, H. (2022). The dark side of the torsion: dark energy from propagating torsion. EUROPEAN PHYSICAL JOURNAL C, 82 (3) https://doi.org/10.1140/epjc/s10052-022-10187-2
Abstract
An extension to the Einstein-Cartan (EC) action is discussed in terms of
cosmological solutions. The torsion incorporated in the EC Lagrangian is
assumed to be totally anti-symmetric, represented by a time-like axial vector
$S^\mu$. The dynamics of torsion is invoked by a novel kinetic term. Here we
show that this kinetic term gives rise to dark energy, while the quadratic
torsion term, emanating from the EC part, represents a stiff fluid that leads
to a bouncing cosmology solution. A constraint on the bouncing solution is
calculated using cosmological data from different epochs.
Keywords
Regular Article - Theoretical Physics
Identifiers
s10052-022-10187-2, 10187
External DOI: https://doi.org/10.1140/epjc/s10052-022-10187-2
This record's URL: https://www.repository.cam.ac.uk/handle/1810/336263
Rights
Licence:
http://creativecommons.org/licenses/by/4.0/
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