Evolution of the horizons for dark energy universe

TL;DR

This paper investigates how the apparent and event horizons evolve in different dark energy models, especially as they cross the phantom barrier, to better understand the universe's accelerating expansion.

Contribution

It analyzes the evolution of cosmic horizons in various dark energy scenarios, focusing on their behavior near the phantom barrier line.

Findings

Horizon behaviors vary across dark energy models.

Some models exhibit crossing of the phantom barrier.

Insights into horizon dynamics during universe acceleration.

Abstract

Recent observational evidences of accelerating phase of the universe strongly demand that the dominating matter in the universe is in the form of dark energy. In this work, we study the evolution of the apparent and event horizons for various dark energy models and examine their behavior across phantom barrier line.