Singularities in Isotropic Non-Minimal Scalar Field Models

Details Singularities in Isotropic Non-Minimal Scalar Field Models Singularities in Isotropic Non-Minimal Scalar Field Models

2006-04-24

arxiv.org/abs/gr-qc/0604105v1

Class.Quant.Grav. 23 (2006) 4983-4990

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

12 pages

Scientific paper

10.1088/0264-9381/23/15/016

Non-minimally coupling a scalar field to gravity introduces an additional curvature term into the action which can change the general behavior in strong curvature regimes, in particular close to classical singularities. While one can conformally transform any non-minimal model to a minimally coupled one, that transformation can itself become singular. It is thus not guaranteed that all qualitative properties are shared by minimal and non-minimal models. This paper addresses the classical singularity issue in isotropic models and extends singularity removal in quantum gravity to non-minimal models.

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