Singularity-Free Two Dimensional Cosmologies
广义相对论与量子宇宙学
2011-07-19 v2 高能物理 - 理论
摘要
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].
引用
@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}
}
备注
15 pages, uses LaTeX, 7 figures (available from the authors), significant changes to conformal matter section, more figures added