Behavior of $F(R)$ gravity around a crossing of the phantom divide

TL;DR

This paper investigates how a specific $F(R)$ gravity model behaves near the crossing of the phantom divide, considering the influence of cold dark matter on this transition.

Contribution

It demonstrates the behavior of $F(R)$ gravity around the phantom divide crossing with cold dark matter included, providing insights into cosmic acceleration models.

Findings

Behavior of $F(R)$ gravity near the phantom divide crossing

Impact of cold dark matter on the crossing dynamics

Conditions for crossing in $F(R)$ gravity models

Abstract

We study a model of $F(R)$ gravity in which a crossing of the phantom divide can be realized. In particular, we demonstrate the behavior of $F(R)$ gravity around a crossing of the phantom divide by taking into account the presence of cold dark matter.