The dark side of the torsion: dark energy from propagating torsion
Guendelman, E. I.
van de Venn, A.
The European Physical Journal C
Springer Berlin Heidelberg
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Benisty, D., Guendelman, E. I., van de Venn, A., Vasak, D., Struckmeier, J., & Stoecker, H. (2022). The dark side of the torsion: dark energy from propagating torsion. The 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 Sμ. 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.
Regular Article - Theoretical Physics
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