In this article, we study a flat homogeneous FLRW model in Lyra geometry which is described by a time-dependent displacement vector. We consider an appropriate parametrization of the energy density of scalar field ρϕ in terms of the cosmic scale factor. The result shows two transitions from deceleration to acceleration. Furthermore, we constrain the model parameter α and the displacement field vector β using the recent supernovae data, Hubble data set of 77 points, and their joint data which predicts the accelerated expanding phase of the universe in late times. The effective equation of state parameter ωeff speculate ΛCDM in late times. Finally, we use the statefinder diagnostic to differentiate our model from the various dark energy models.
@article{arxiv.2209.06859,
title = {The constrained cosmological model in Lyra geometry},
author = {J. K. Singh and Shaily and Shri Ram and Joao R. L. Santos and Jéferson A. S. Fortunato},
journal= {arXiv preprint arXiv:2209.06859},
year = {2023}
}