Ghost Dark Energy with Variable Gravitational Constant

Gabriel Joseph

Authors

Gabriel Joseph Department of Physics, Taraba State University, P. M. B. 1167, Jalingo, Taraba State, Nigeria https://orcid.org/0000-0003-3760-2112

Keywords:

Cosmology, dark energy, dark matter, hubble parameter

Abstract

In a bid to resolve lingering problems in modern Cosmology, Cosmologist are turning to models in which Physical constants of nature are not real constants but vary as function of the scale factor of the universe. In this work, a cosmological model is developed by incorporating Ghost Dark Energy model with Barrow's ansatz for varying Gravitational Constant. A model obtained is free from initial Big Bang Singularity and Inflation Problem. A test of Causality showed that the model depends of the constant m and is classically stable at -6 > m > -3.

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