English

Isotropization in Chaplygin matter universes connected by a wormhole

General Relativity and Quantum Cosmology 2013-08-07 v1

Abstract

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.

Keywords

Cite

@article{arxiv.1304.5608,
  title  = {Isotropization in Chaplygin matter universes connected by a wormhole},
  author = {Anna Mokeeva and Vladimir Popov},
  journal= {arXiv preprint arXiv:1304.5608},
  year   = {2013}
}

Comments

15 pages, 9 figures. arXiv admin note: text overlap with arXiv:1205.1542

R2 v1 2026-06-22T00:03:25.757Z