Bouncing Universe in the Contexts of Generalized Cosmic Chaplygin Gas and Variable Modified Chaplygin Gas
General Relativity and Quantum Cosmology
2018-12-11 v1
Abstract
In this work, we have considered the Friedmann-Robertson-Walker (FRW) model of the universe where bounce occurs and the universe is filled with Generalized Cosmic Chaplygin Gas (GCCG) or Variable Modified Chaplygin Gas (VMCG). We have studied the stability analysis through dynamical system for both models and found the critical points in flat, open and closed universe. In presence of scalar field, the dynamical behavior of scale factor and Hubble parameter is described in both models. Finally, we have analyzed the energy conditions for both the models in bouncing universe.
Keywords
Cite
@article{arxiv.1812.03834,
title = {Bouncing Universe in the Contexts of Generalized Cosmic Chaplygin Gas and Variable Modified Chaplygin Gas},
author = {Tanwi Bandyopadhyay and Ujjal Debnath},
journal= {arXiv preprint arXiv:1812.03834},
year = {2018}
}
Comments
16 pages, 29 figures