English

Constraining logarithmic $f(R,T)$ model using Dark Energy density parameter $\Omega_{\Lambda}$ and Hubble parameter $H_0$

General Relativity and Quantum Cosmology 2024-09-05 v2

Abstract

Of many extended theories of gravity, f(R,T)f(R,T) gravity has gained reasonable interest in recent times as it provides interesting results in cosmology. Logarithmic corrections in modified theories of gravity has been studied extensively. In this work, we considered logarithmic correction to the trace term T and take the functional form as f(R,T)=R+16πGαlnTf(R,T)=R + 16 \pi G \alpha \ln T where α\alpha is a free parameter. The free parameter is constrained using dark energy density parameter ΩΛ\Omega_{\Lambda} and Hubble parameter H0H_0. The lower bound is found to be α9.85×1029\alpha \ge - 9.85 \times 10^{-29}. The cosmological implications are also studied.

Keywords

Cite

@article{arxiv.2207.10610,
  title  = {Constraining logarithmic $f(R,T)$ model using Dark Energy density parameter $\Omega_{\Lambda}$ and Hubble parameter $H_0$},
  author = {Biswajit Deb and Atri Deshamukhya},
  journal= {arXiv preprint arXiv:2207.10610},
  year   = {2024}
}

Comments

8 pages, Paper presented in the 23rd International Conference on General Relativity and Gravitation, 3-8 July, 2022, Beijing organized by ISGRG

R2 v1 2026-06-25T01:07:27.502Z