Numerical analysis of cosmological models for accelerating Universe in Poincare gauge theory of gravity
arXiv:1107.1566
Abstract
Homogeneous isotropic models with two torsion functions built in the framework of the Poincare gauge theory of gravity based on general expression of gravitational Lagrangian by certain restrictions on indefinite parameters are analyzed numerically. Special points of cosmological solutions at asymptotics and conditions of their stability in dependence of indefinite parameters are found. Procedure of numerical integration of the system of gravitational equations at asymptotics is considered. Numerical solution for accelerating Universe without dark energy and dark matter is obtained. It is shown that by certain restrictions on indefinite parameters obtained cosmological solutions are in agreement with SNe Ia observational data and Big Bang Nucleosynthesis predictions. Statefinder diagnostics is discussed in order to compare considered cosmological model with other models.
19 pages, 6 figures, jcappub style file
References in corpus (13)
- Dark Energy and the Accelerating Universe
- Improved Cosmological Constraints from New, Old and Combined Supernova Datasets
- Spectra and Light Curves of Six Type Ia Supernovae at 0.511 < z < 1.12 and the Union2 Compilation
- Primordial Nucleosynthesis in the Precision Cosmology Era
- Torsion Cosmology and the Accelerating Universe
- Cosmological dynamics with propagating Lorentz connection modes of spin zero
- Accelerating Universe with spacetime torsion but without dark matter and dark energy
- Statefinder diagnostic for cosmology with the abnormally weighting energy hypothesis
- Statefinder diagnostic in a torsion cosmology
- Gravitation, Cosmology and Space-Time Torsion
- Analysis of regular inflationary cosmological models with two torsion functions in Poincare gauge theory of gravity
- Comment on "Torsion Cosmology and Accelerating Universe"
- To theory of gravitational interaction