Holographic dark energy through Loop Quantum Gravity inspired entropy
Abstract
We construct a new cosmological holographic dark energy scenario based on Loop Quantum Gravity inspired entropy, instead of the standard Bekenstein-Hawking one. The former is an extended black-hole entropy that arises from non-extensive statistics and quantum geometry and is quantified by a new dimensionless parameter , which possesses standard holographic dark energy as a particular sub-case. In the future event horizon as the Infrared cutoff, we provide a simple differential equation for the dark energy density parameter, as well as an analytical expressions for the corresponding equation-of-state and deceleration parameters. We show that the scenario at hand can describe successfully the usual thermal history of the Universe, with the sequence of matter and dark-energy epochs, while the transition to acceleration takes place at . Additionally, according to the value of the new entropic parameter , the dark energy equation-of-state parameter can have a rich behavior, and it can be quintessence-like, phantom-like, or experience the phantom-divide crossing.
Cite
@article{arxiv.2310.01050,
title = {Holographic dark energy through Loop Quantum Gravity inspired entropy},
author = {Andreas Lymperis},
journal= {arXiv preprint arXiv:2310.01050},
year = {2023}
}
Comments
19 pages, 4 figures