Scalar Field Cosmologies with Barotropic Matter: Models of Bianchi class B

Details Scalar Field Cosmologies with Barotropic Matter: Models of Bianchi class B Scalar Field Cosmologies with Barotropic Matter: Models of Bianchi class B

1999-07-15

arxiv.org/abs/gr-qc/9907053v1

Class.Quant.Grav. 16 (1999) 4035-4056

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

18 pages, 1 figure, uses revtex and epsf to insert figure

Scientific paper

10.1088/0264-9381/16/12/320

We investigate in detail the qualitative behaviour of the class of Bianchi type B spatially homogeneous cosmological models in which the matter content is composed of two non-interacting components; the first component is described by a barotropic fluid having a gamma-law equation of state, whilst the second is a non-interacting scalar field (phi) with an exponential potential V=Lambda exp(k phi). In particular, we study the asymptotic properties of the models both at early and late times, paying particular attention on whether the models isotropize (and inflate) to the future, and we discuss the genericity of the cosmological scaling solutions.

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