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- Title
Limiting energy density and a regular accelerating universe in Riemann-Cartan spacetime.
- Authors
Minkevich, A.
- Abstract
Isotropic cosmology built in the Riemann-Cartan spacetime by using sufficiently general expression of gravitational Lagrangian is investigated. It is shown that cosmological equations obtained by certain restrictions on indefinite parameters of gravitational Lagrangian lead to limiting energy density at the beginning of cosmological expansion and all cosmological models filled with usual gravitating matter satisfying standard energy conditions are regular with respect to energy density, spacetime metrics with its time derivative and torsion functions. At asymptotics cosmological solutions of spatially flat models coincide with that of standard ΛCDM-model for accelerating Universe.
- Subjects
ENERGY level densities; ACCELERATION (Mechanics); SPACETIME; METAPHYSICAL cosmology; LAGRANGIAN functions; GRAVITATION; MATHEMATICAL models
- Publication
JETP Letters, 2012, Vol 94, Issue 12, p831
- ISSN
0021-3640
- Publication type
Article
- DOI
10.1134/S0021364011240052