TY - JOUR
T1 - The dark side of the torsion
T2 - dark energy from propagating torsion
AU - Benisty, D.
AU - Guendelman, E. I.
AU - van de Venn, A.
AU - Vasak, D.
AU - Struckmeier, J.
AU - Stoecker, H.
N1 - Publisher Copyright:
© 2022, The Author(s).
PY - 2022/3/1
Y1 - 2022/3/1
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=85127268116&partnerID=8YFLogxK
U2 - 10.1140/epjc/s10052-022-10187-2
DO - 10.1140/epjc/s10052-022-10187-2
M3 - Article
AN - SCOPUS:85127268116
SN - 1434-6044
VL - 82
JO - European Physical Journal C
JF - European Physical Journal C
IS - 3
M1 - 264
ER -