Emergent Universe Scenario in Modified Gauss-Bonnet Gravity
Cosmology and Nongalactic Astrophysics
2020-08-04 v1 General Relativity and Quantum Cosmology
Abstract
We present modified Gauss-Bonnet gravity without matter in four dimensions which accommodates flat emergent universe (EU) obtained in Einstein's general theory of gravity with a non-linear equation of state. The EU model is interesting which is free from big-bang singularity with other observed features of the universe. It is assumed that the present universe emerged out from a static Einstein universe phase exists in the infinite past. To obtain a flat EU model we reconstructed mimetic modified -gravity ( representing Gauss-Bonnet terms) without matter. The functional form of f(G)-gravity is determined which accommodates the early inflation and late accelerating phases without matter.
Keywords
Cite
@article{arxiv.2008.00169,
title = {Emergent Universe Scenario in Modified Gauss-Bonnet Gravity},
author = {B. C. Paul and S. D. Maharaj and A. Beesham},
journal= {arXiv preprint arXiv:2008.00169},
year = {2020}
}
Comments
8 pages, No figure