Cosmic acceleration in entropic cosmology
General Relativity and Quantum Cosmology
2024-03-07 v2 Cosmology and Nongalactic Astrophysics
High Energy Physics - Theory
Abstract
In this paper we study the viability of an entropic cosmological model. The effects of entropic gravity are derived from a modified entropy-area relationship with a volumetric entropy term. This model describes a late time limit cosmic acceleration, whose origin is related to a volumetric term in the entropy. Moreover, we analyze the phenomenological implications of the entropic model using the Supernovae Pantheon compilation and the observational Hubble parameter data to find consistency with cosmological observations. Finally, we show the equivalence between the entropic model and a brane world cosmological model, by means of an effective geometrical construction.
Cite
@article{arxiv.2305.01607,
title = {Cosmic acceleration in entropic cosmology},
author = {Javier Chagoya and I. Díaz-Saldaña and J. C. López-Domínguez and M. Sabido},
journal= {arXiv preprint arXiv:2305.01607},
year = {2024}
}
Comments
11 pages, 3 figures. Version accepted for Publication in Phys. Lett. B