Bianchi type IX asymptotical behaviours with a massive scalar field: chaos strikes back

Details Bianchi type IX asymptotical behaviours with a massive scalar field: chaos strikes back Bianchi type IX asymptotical behaviours with a massive scalar field: chaos strikes back

2005-09-16

arxiv.org/abs/gr-qc/0509071v1

Gen.Rel.Grav. 37 (2005) 1097-1117

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

31 pages, 7 figures (low resolution)

Scientific paper

10.1007/s10714-005-0093-0

We use numerical integrations to study the asymptotical behaviour of a homogeneous but anisotropic Bianchi type IX model in General Relativity with a massive scalar field. As it is well known, for a Brans-Dicke theory, the asymptotical behaviour of the metric functions is ruled only by the Brans-Dicke coupling constant with respect to the value -3/2. In this paper we examine if such a condition still exists with a massive scalar field. We also show that, contrary to what occurs for a massless scalar field, the singularity oscillatory approach may exist in presence of a massive scalar field having a positive energy density.

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