Generalised scalar-tensor theory in the Bianchi type I model

Details Generalised scalar-tensor theory in the Bianchi type I model Generalised scalar-tensor theory in the Bianchi type I model

2000-01-19

arxiv.org/abs/gr-qc/0001054v1

Gen.Rel.Grav. 32 (2000) 187-202

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

14 pages, 12 figures, to appear in General Relativity and Gravitation

Scientific paper

We use a conformal transformation to find solutions to the generalised scalar-tensor theory, with a coupling constant dependent on a scalar field, in an empty Bianchi type I model. We describe the dynamical behaviour of the metric functions for three different couplings: two exact solutions to the field equations and a qualitative one are found. They exhibit non-singular behaviours and kinetic inflation. Two of them admit both General Relativity and string theory in the low-energy limit as asymptotic cases.

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