Cosmological perturbations in the models of dark energy and modified gravity
Cosmology and Nongalactic Astrophysics
2017-09-18 v1 General Relativity and Quantum Cosmology
High Energy Physics - Theory
Abstract
The quasi-static solutions of the matter density perturbation in various dark energy models and modified gravity models have been investigated in numerous papers. However, the oscillating solutions in those models have not been investigated enough so far. In this paper, the oscillating solutions, which have a possibility to unveil the difference between the models of the late-time accelerated expansion of the Universe, are also mentioned by using appropriate approximations.
Keywords
Cite
@article{arxiv.1401.3077,
title = {Cosmological perturbations in the models of dark energy and modified gravity},
author = {Jiro Matsumoto},
journal= {arXiv preprint arXiv:1401.3077},
year = {2017}
}
Comments
7 pages, to appear in the proceedings of The 10th International Symposium on Cosmology and Particle Astrophysics (CosPA2013)