Singularity-Free Two Dimensional Cosmologies
General Relativity and Quantum Cosmology
2011-07-19 v2 High Energy Physics - Theory
Abstract
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].
Cite
@article{arxiv.gr-qc/9405004,
title = {Singularity-Free Two Dimensional Cosmologies},
author = {R. Moessner and M. Trodden},
journal= {arXiv preprint arXiv:gr-qc/9405004},
year = {2011}
}
Comments
15 pages, uses LaTeX, 7 figures (available from the authors), significant changes to conformal matter section, more figures added