English

Accelerating models with a hybrid scale factor in extended gravity

General Relativity and Quantum Cosmology 2021-06-10 v1 Numerical Analysis High Energy Physics - Theory Numerical Analysis

Abstract

Dynamical aspects of cosmological model in an extended gravity theory have been investigated in the present work. We have adopted a simplified approach to obtain cosmic features, which in fact requires more involved calculations. A cosmological model is constructed using a hybrid scale factor that simulates a cosmic transit behaviour. The deceleration parameter and energy conditions have been obtained for the constructed model. Scalar fields have been reconstructed from the present model in the extended gravity. Different diagnostic methods have been applied to analyse the viability of the constructed model. The present model almost looks like a cosmological constant for a substantial cosmic time zone and does not show any slowing down feature in near future.

Keywords

Cite

@article{arxiv.1908.02152,
  title  = {Accelerating models with a hybrid scale factor in extended gravity},
  author = {B. Mishra and S. K. Tripathy and Sankarsan Tarai},
  journal= {arXiv preprint arXiv:1908.02152},
  year   = {2021}
}

Comments

14 pages, 8 figures

R2 v1 2026-06-23T10:40:58.832Z