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Cyclic Szekeres universes

Published version
Peer-reviewed

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Authors

Barrow, John D. 
Paliathanasis, Andronikos 

Abstract

Abstract: We consider the Szekeres universe with an inhomogeneous dust fluid and a homogeneous and isotropic ghost matter source with equation of state pg=(γ-1)ρg, where γ is a constant. The field equations determine two families of spacetimes which describe homogeneous Kantowski–Sachs universes and inhomogeneous Friedmann universes. The ghost field permits static and cyclic solutions to exist. The stability of the Einstein static and cyclic solutions are studied with a critical point analysis.

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Keywords

Regular Article - Theoretical Physics

Journal Title

The European Physical Journal C

Conference Name

Journal ISSN

1434-6044
1434-6052

Volume Title

79

Publisher

Springer Berlin Heidelberg