A study on the interacting Ricci dark energy in $f(R,T)$ gravity

TL;DR

This paper investigates the dynamics of interacting Ricci dark energy within a specific $f(R,T)$ gravity model, revealing a transition from matter dominance to dark energy and a behavior akin to quintom models, bridging dust and $\\Lambda$CDM phases.

Contribution

It introduces a detailed analysis of Ricci dark energy in $f(R,T)$ gravity with a specific linear model, highlighting its cosmological evolution and statefinder diagnostics.

Findings

Equation of state shows quintom-like behavior.

Transition from matter to dark energy dominance.

Model interpolates between dust and $\\Lambda$CDM phases.

Abstract

The present work reports study on the interacting Ricci dark energy in a modified gravity theory named $f(R,T)$ gravity. The specific model $f(R,T)=\mu R+\nu T$ (proposed by R. Myrzakulov, arXiv:1205.5266v2) is considered here. For this model we have observed a quintom-like behavior of the equation of state (EoS) parameter and a transition from matter dominated to dark energy density has been observed through fraction density evolution. The statefinder parameters reveal that the model interpolates between dust and $\Lambda$CDM phases of the universe.