English

Anisotropic nature of space-time in $f(Q)$ gravity

General Relativity and Quantum Cosmology 2022-08-18 v2

Abstract

In this paper, we consider the Bianchi type-I space-time with perfect fluid as matter content of the Universe in the framework of f(Q)f(Q) gravity (where % Q is the non-metricity scalar) recently proposed by Jim\'{e}nez et al. (Phys. Rev. D 98.4 (2018): 044048). We find exact solutions of the field equations using the anisotropic property of space-time for volumetric hybrid expansion. The cosmological parameters for the linear form of non-metricity scalar i.e. f(Q)=αQ+βf\left( Q\right) =\alpha Q+\beta (where α\alpha and β\beta are free model parameters) are discussed and compared with recent Hubble measurements. Also, we have obtained the best fitting values of the model parameters k,nk, n and H0H_{0} by constraining our model with updated Hubble datasets consisting of 57 data points (3131 (DA) and 2626 (BAO+other)) along with also examined the stability of the model and test its validity by energy conditions.

Keywords

Cite

@article{arxiv.2203.01132,
  title  = {Anisotropic nature of space-time in $f(Q)$ gravity},
  author = {M. Koussour and S. H. Shekh and M. Bennai},
  journal= {arXiv preprint arXiv:2203.01132},
  year   = {2022}
}

Comments

Physics of the Dark Universe published version