# Revisiting Holographic Dark Energy in Cyclic Cosmology

## TL;DR

This paper explores holographic dark energy models with different IR cutoffs within cyclic cosmology, showing potential to mimic a cosmological constant and produce cyclic universe behavior without singularities.

## Contribution

It analyzes the effects of different IR cutoffs on holographic dark energy in cyclic cosmology, highlighting conditions for cyclic behavior and cosmological constant mimicry.

## Key findings

- HDE with Hubble radius cutoff mimics a cosmological constant in cyclic universe.
- Both interacting and non-interacting models can produce cyclic phases with GO cutoff.
- Cyclic behavior depends on the choice of IR cutoff in the HDE model.

## Abstract

Considering the holographic dark energy (HDE) with two different Infrared (IR) cutoffs, we study the evolution of a cyclic universe which avoids the Big-Rip singularity. Our results show that, even in the absence of a mutual interaction between the cosmos sectors, the HDE model with the Hubble radius as IR cutoff can mimics a cosmological constant in the framework of a cyclic cosmology. In addition, we find that both the interacting and non-interacting universes may enter into a cycle of sequential contraction and expansion, if the Granda-Oliveros (GO) cutoff is chosen as the IR cutoff in the energy density of the HDE.