Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2008-01-07
JCAP 0810:010,2008
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
16 pages, 2 figures
Scientific paper
10.1088/1475-7516/2008/10/010
The torsion is shown to be vitally important in the explanation of the evolution of the universe in a large class of gravitational theories containing quadratic terms of curvature and torsion. The cosmological solutions with homogeneous and isotropic torsion in a model of de Sitter gauge theory of gravity are presented, which may explain the observation data for SN Ia when parameters are suitably chosen and supply a natural transit from decelerating expansion to accelerating expansion without the help of the introduction of other strange fields in the theory.
Guo Han-Ying
Huang Chao-Guang
Zhang Hai-Qing
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