Tuesday, April 23, 2013

1304.5608 (Anna Mokeeva et al.)

Isotropization in Chaplygin matter universes connected by a wormhole    [PDF]

Anna Mokeeva, Vladimir Popov
Chaplygin anisotropic matter governing the cosmological evolution in two identical universes with an intermediate static spherically symmetric region is considered. The static region contains a wormhole allowing one to pass etween two horizons. The metric in the non-static region represents a kind of an anisotropic Kantowski-Sachs cosmological model starting from a horizon instead the initial singularity. A classification of the cosmologies with a monotonic late stage is presented. It is shown that only one scenario can involve a de Sitter regime. The scales in the de Sitter phase allows one to describe the earliest accelerated expansion on the classical level.
View original: http://arxiv.org/abs/1304.5608

No comments:

Post a Comment