Gravitational waves in a stringlike fluid cosmology
广义相对论与量子宇宙学
2009-10-31 v1
摘要
The coupling of a stringlike fluid with ordinary matter and gravity may lead to a closed Universe with the dynamic of an open one. This can provide an alternative solution for the age and horizon problems. A study of density perturbations of the stringlike fluid indicates the existence of instabilities in the small wavelength limit when it is employed a hydrodynamic approach. Here, we extend this study to gravitational waves, where the hydrodynamical approach plays a less important role, and we argue that traces of the existence of this fluid must be present in the anisotropies of the cosmic background radiation.
引用
@article{arxiv.gr-qc/9806016,
title = {Gravitational waves in a stringlike fluid cosmology},
author = {J. C. Fabris and S. V. B. Goncalves},
journal= {arXiv preprint arXiv:gr-qc/9806016},
year = {2009}
}
备注
Latex, 8 pages