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 - Funding Information:
D.B. acknowledges wholeheartedly the longstanding support of the Margarethe und Herbert Puschmann Stiftung. D.B gratefully acknowledge the support from the Blavatnik and the Rothschild fellowships. D. V. and A. v. d. V. thank the Carl-Wilhelm Fueck Stiftung for generous support through the Walter Greiner Gesellschaft zur Foerderung der physikalischen Grundlagenforschung Frankfurt. H.St. acknowledges the Judah M. Eisenberg Professor Laureatus—Chair of the Walter Greiner Gesellschaft at Goethe Universität Frankfurt am Main. We have received partial support from European COST actions CA15117, CA16104 and CA18108 and STFC consolidated Grants ST/P0006811 and ST/T0006941.
Funding Information:
D.B. acknowledges wholeheartedly the longstanding support of the Margarethe und Herbert Puschmann Stiftung. D.B gratefully acknowledge the support from the Blavatnik and the Rothschild fellowships. D. V. and A. v. d. V. thank the Carl-Wilhelm Fueck Stiftung for generous support through the Walter Greiner Gesellschaft zur Foerderung der physikalischen Grundlagenforschung Frankfurt. H.St. acknowledges the Judah M. Eisenberg Professor Laureatus?Chair of the Walter Greiner Gesellschaft at Goethe Universit?t Frankfurt am Main. We have received partial support from European COST actions CA15117, CA16104 and CA18108 and STFC consolidated Grants ST/P0006811 and ST/T0006941.
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 -