Acausality in Gowdy spacetimes

Details Acausality in Gowdy spacetimes Acausality in Gowdy spacetimes

2004-09-13

arxiv.org/abs/gr-qc/0409051v1

Gen.Rel.Grav. 38 (2006) 599-606

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

Typos corrected, 10 pages. Dedicated to Michael P. Ryan on the occasion of his 60-th birthday

Scientific paper

We present a parametrization of $T^3$ and $S^1\times S^2$ Gowdy cosmological models which allows us to study both types of topologies simultaneously. We show that there exists a coordinate system in which the general solution of the linear polarized special case (with both topologies) has exactly the same functional dependence. This unified parametrization is used to investigate the existence of Cauchy horizons at the cosmological singularities, leading to a violation of the strong cosmic censorship conjecture. Our results indicate that the only acausal spacetimes are described by the Kantowski-Sachs and the Kerr-Gowdy metrics.

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