A model of nonsingular universe
General Relativity and Quantum Cosmology
2012-08-02 v2 Cosmology and Nongalactic Astrophysics
High Energy Physics - Theory
Abstract
In the background of Friedmann-Robertson-Walker Universe, there exists Hawking radiation which comes from the cosmic apparent horizon due to quantum effect. Although the Hawking radiation on the late time evolution of the universe could be safely neglected, it plays an important role in the very early stage of the universe. In view of this point, we identify the temperature in the scalar field potential with the Hawking temperature of cosmic apparent horizon. Then we find a nonsingular universe sourced by the temperature-dependant scalar field. We find that the universe could be created from a de Sitter phase which has the Planck energy density. Thus the Big-Bang singularity is avoided.
Keywords
Cite
@article{arxiv.1203.6420,
title = {A model of nonsingular universe},
author = {Changjun Gao},
journal= {arXiv preprint arXiv:1203.6420},
year = {2012}
}
Comments
6 pages, 3 figures. To appear in Entropy