Holographic Gas as Dark Energy

TL;DR

This paper explores the holographic gas as a model for dark energy, deriving its thermodynamic properties and implications for the universe's fate, including the prediction of a phantom-like universe.

Contribution

It introduces a modified degeneracy approach to holographic entropy and connects holographic gas behavior to dark energy with calculable parameters.

Findings

Holographic entropy can be derived by modifying degeneracy.

The model predicts a parameter c<1 for holographic dark energy.

The universe is likely to end in a phantom-like state.

Abstract

We investigate the statistical nature of holographic gas, which may represent the quasi-particle excitations of a strongly correlated gravitational system. We find that the holographic entropy can be obtained by modifying degeneracy. We calculate thermodynamical quantities and investigate stability of the holographic gas. When applying to cosmology, we find that the holographic gas behaves as holographic dark energy, and the parameter $c$ in holographic dark energy can be calculated from our model. Our model of holographic gas generally predicts $c<1$, implying that the fate of our universe is phantom like.