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arxiv: 1304.5608 · v1 · pith:2MAILACBnew · submitted 2013-04-20 · 🌀 gr-qc

Isotropization in Chaplygin matter universes connected by a wormhole

classification 🌀 gr-qc
keywords regionanisotropicchaplygincosmologicalmattersitterstaticuniverses
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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.

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