The extended holographic Dark Energy cosmological models

TL;DR

This paper develops a comprehensive analytical framework for cosmological models involving three interacting fluids, including holographic dark energy, and suggests extending holographic energy density functions to resolve compatibility issues.

Contribution

It introduces a general analytical approach for models with three interacting fluids and proposes extending holographic energy density forms for better consistency.

Findings

Analytical solutions for cosmologies with three fluids.

Identification of incompatibilities in standard holographic energy densities.

Proposal to extend holographic energy density functions.

Abstract

We present a general analytical treatment of cosmological models commanded by three interactive fluids with arbitrary barotropic indexes. The variable equations of state case are applicable to universes with quintessences, k essences and holographic fluids and we pay some attention to the holographic case. We also propose the need to extend the functional forms of the holographic energy densities that are usual in the literature in the face of the incompatibility presented by them when special interactions are used.