Behaviour of interacting Ricci dark energy in logarithmic f(T) gravity

TL;DR

This paper explores the dynamics of Ricci dark energy interacting with dark matter within a logarithmic f(T) gravity framework, revealing phantom-like behavior of the dark energy equation of state across various parameters.

Contribution

It introduces a novel analysis of Ricci dark energy in logarithmic f(T) gravity with interaction, highlighting the evolution of cosmological parameters and the phantom nature of dark energy.

Findings

Cosmological parameters increase from high to low redshift.

Ricci dark energy exhibits phantom behavior for all tested parameters.

Hubble parameter evolution aligns with observational expectations.

Abstract

In the present work we have considered a modified gravity dubbed as "logarithmic $f(T)$ gravity" and investigated the behavior of Ricci dark energy interacting with pressureless dark matter. We have chosen the interaction term in the form $Q\propto H\delta\rho_{m}$ and investigated the behavior of the Hubble parameter $H$ as a function of the redshift $z$. For this reconstructed $H$ we have investigated the behavior of the density of the Ricci dark energy $\rho_{RDE}$ and density contribution due to torsion $\rho_{T}$. All of the said cosmological parameters are seen to have increasing behavior from higher to lower redshifts for all values of $c^{2}$ pertaining to the Ricci dark energy. Subsequently, we observed the equation of state parameter $w_{RDE}$ in this situation. The equation of state parameter is found to behave like phantom for all choices of $c^{2}$ in the Ricci dark energy.