Galilean Islands in Eternally Inflating Background
General Relativity and Quantum Cosmology
2013-08-28 v2 High Energy Physics - Theory
Abstract
We show that the observational universe may emerge classically from a de Sitter background with low energy scale. We find, after calculating the curvature perturbation, that the resulting scenario is actually a style of the eternal inflation scenario, in which some regions will go through the slowly expanding Galilean genesis phase with the rapidly increasing energy density and become island universes, while other regions are still eternally inflating, which will make the room for more island universes to emerge.
Keywords
Cite
@article{arxiv.1301.6833,
title = {Galilean Islands in Eternally Inflating Background},
author = {Zhi-Guo Liu and Yun-Song Piao},
journal= {arXiv preprint arXiv:1301.6833},
year = {2013}
}
Comments
8 pages, 4 figs, refs added, figs and discussions improved, to publish in PRD