Dynamical study of viscous modified Chaplygin gas and confrontation with recent observational data. (October 2019)

• Record Type: Journal Article
• Authors: Mebarki, N.; Aberkane, D.
• Is Part Of: Journal of physics. Volume 1258(2019)
• Publication Date: 2019-10
• Subjects: Physics -- Congresses; 530.5
• DOI: 10.1088/1742-6596/1258/1/012025
• Languages: English
• ISSNs: 1742-6588

Abstract

Abstract: A cosmological Model of viscous modified Chaplygin gas in classical and loop quantum cosmology (LQC) is proposed and a dynamical stability study is investigated. It is shown that the model is consistent with the recent observational data and gives good predictions for the deceleration and state parameters. The model can also predict the time crossing and gives a solution to the coincidence problem. Furthermore, in LQC background, the big bang singularity found in classical cosmology cease to exist and is replaced by a bounce when the Hubble parameter vanishes at the LQC critical energy density.