Multidimensional perfect fluid cosmology with stable compactified internal dimensions
广义相对论与量子宇宙学
2009-10-31 v1 天体物理学
高能物理 - 理论
摘要
Multidimensional cosmological models in the presence of a bare cosmological constant and a perfect fluid are investigated under dimensional reduction to 4-dimensional effective models. Stable compactification of the internal spaces is achieved for a special class of perfect fluids. The external space behaves in accordance with the standard Friedmann model. Necessary restrictions on the parameters of the models are found to ensure dynamical behavior of the external (our) universe in agreement with observations.
引用
@article{arxiv.gr-qc/9804018,
title = {Multidimensional perfect fluid cosmology with stable compactified internal dimensions},
author = {U. Guenther and A. Zhuk},
journal= {arXiv preprint arXiv:gr-qc/9804018},
year = {2009}
}
备注
11 pages, Latex2e, uses IOP packages, submitted to Class.Quant.Grav