Application of Gradient Expansion to Inflationary Universe
Astrophysics
2009-10-22 v1 General Relativity and Quantum Cosmology
Abstract
Using the long wave perturbation scheme(gradient expansion), the effect of inhomogeneity on the inflationary phase is investigated. We solved the perturbation equation of which source term comes from inhomogeneity of a scalar field and a seed metric. The result indicates that sub-horizon scale inhomogeneity strongly affects the onset of inflation.
Keywords
Cite
@article{arxiv.astro-ph/9411013,
title = {Application of Gradient Expansion to Inflationary Universe},
author = {Yasusada Nambu and Atsushi Taruya},
journal= {arXiv preprint arXiv:astro-ph/9411013},
year = {2009}
}
Comments
11 pages, revtex