The growth of matter perturbations in the f(T) gravity

Abstract

In this paper, we study the growth index of matter density perturbations for the power law model in $f(T)$ gravity. Using the parametrization $\gamma (z)={\gamma }_0+{\gamma }_1\frac{z}{1+z}$ for the growth index, which approximates the real evolution of $\gamma (z)$ very well, and the observational data of the growth factor, we find that, at $1\sigma$ confidence level, the power law model in $f(T)$ gravity is consistent with the observations, since the obtained theoretical values of ${\gamma }_0$ and ${\gamma }_1$ are in the allowed region.

11 pages 4 figures

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Cited by in corpus (11)

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• Matter Density Perturbations in Modified Teleparallel Theories
• Planar Symmetry in f(T) gravity
• Reduced modified Chaplygin gas cosmology
• Evaporation phenomena in f(T) gravity
• $f(T)$ Gravity: Background Dependence and Propagating Degrees of Freedom
• Dynamical dark energy models with singularities in the view of the forthcoming results of the growth observations
• Reconciling the ACT Preference in $f(T)$ Gravity: Inflation and Reheating Constraints