How fundamental is entropy? From non-extensive statistics and black hole physics to the holographic dark universe
General Relativity and Quantum Cosmology
2022-01-10 v1 High Energy Physics - Theory
Abstract
We propose a new entropy construct that generalizes the Tsallis, R\'enyi, Sharma-Mittal, Barrow, Kaniadakis, and Loop Quantum Gravity entropies and reduces to the Bekenstein-Hawking entropy in a certain limit. This proposal is applied to the Schwarzschild black hole and to spatially homogeneous and isotropic cosmology, where it is shown that it can potentially describe inflation and/or holographic dark energy.
Keywords
Cite
@article{arxiv.2201.02424,
title = {How fundamental is entropy? From non-extensive statistics and black hole physics to the holographic dark universe},
author = {Shin'ichi Nojiri and Sergei D. Odintsov and Valerio Faraoni},
journal= {arXiv preprint arXiv:2201.02424},
year = {2022}
}
Comments
13 pages, no figures