Integrable Multicomponent Perfect Fluid Multidimensional Cosmology II: Scalar Fields

Details Integrable Multicomponent Perfect Fluid Multidimensional Cosmology II: Scalar Fields Integrable Multicomponent Perfect Fluid Multidimensional Cosmology II: Scalar Fields

1997-05-17

arxiv.org/abs/gr-qc/9705046v1

Gen.Rel.Grav. 29 (1997) 1123-1162

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

28 pages, LaTeX, subm. to Gen. Rel. Grav

Scientific paper

We consider anisotropic cosmological models with an universe of dimension 4 or more, factorized into n>1 Ricci-flat spaces, containing an m-component perfect fluid of m non-interacting homogeneous minimally coupled scalar fields under special conditions. We describe the dynamics of the universe: It has a Kasner-like behaviour near the singularity and isotropizes during the expansion to infinity. Some of the considered models are integrable, and classical as well as quantum solutions are found. Some solutions produce inflation from "nothing". There exist classical asymptotically anti-de Sitter wormholes, and quantum wormholes with discrete spectrum.

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