Singularity-Free Two Dimensional Cosmologies

Details Singularity-Free Two Dimensional Cosmologies Singularity-Free Two Dimensional Cosmologies

1994-05-02

arxiv.org/abs/gr-qc/9405004v2

Phys.Rev.D51:2801-2807,1995

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

15 pages, uses LaTeX, 7 figures (available from the authors), significant changes to conformal matter section, more figures ad

Scientific paper

10.1103/PhysRevD.51.2801

We present a class of theories of two dimensional gravity which admits homogeneous and isotropic solutions that are nonsingular and asymptotically approach a FRW matter dominated universe at late times. These models are generalizations of two dimensional dilaton gravity and both vacuum solutions and those including conformally coupled matter are investigated. In each case our construction leads to an inflationary stage driven by the gravitational sector. Our work comprises a simple example of the `Nonsingular Universe' constructions of ref. [1].

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