A. V. Minkevich, “Limiting energy density and a regular accelerating Universe in Riemann–Cartan spacetime”, Pis'ma v Zh. Èksper. Teoret. Fiz., 2011, Volume 94, Issue 12,Pages <nobr>913

This article is cited in 14 papers

ASTROPHYSICS AND COSMOLOGY

Limiting energy density and a regular accelerating Universe in Riemann–Cartan spacetime

A. V. Minkevich^ab

^a Belarusian State University, Minsk
^b University of Warmia and Mazury in Olsztyn

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 $\Lambda CDM$-model for accelerating Universe.

Received: 19.10.2011

Language: English