Cyclic Szekeres universes
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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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Regular Article - Theoretical Physics
Journal Title
The European Physical Journal C
Conference Name
Journal ISSN
1434-6044
1434-6052
1434-6052
Volume Title
79
Publisher
Springer Berlin Heidelberg