Dynamical study of the singularities of gravity in the presence of non-minimally coupled scalar fields

2003/05/02 by L. R. Abramo, L. Brenig, E. Gunzig +1
Physics and Astronomy · #gr-qc

paper · pdf

published as Int.J.Theor.Phys. 42 (2003) 1145-1152 · 11 pages

arxiv created 2003/05/02 · arxiv updated 2009/11/30

Abstract

We investigate the dynamics of Einstein equations in the vicinity of the two recently described types of singularity of anisotropic and homogeneous cosmological models described by the action S=∫ d⁴x √(-g)F(ϕ)R - ∂_aϕ∂^aϕ-2V(ϕ), with general F(ϕ) and V(ϕ). The dynamical nature of each singularity is elucidated, and we show that both are, in general, dynamically unavoidable, reinforcing the unstable character of previous isotropic and homogeneous cosmological results obtained for the conformal coupling case.

Related

• The Dynamics of Inhomogeneous Cosmologies
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• Cosmological dynamics of a class of non-minimally coupled models of gravity