Geometrical observational bounds on a fractal horizon holographic dark energy

Autor:	Dabrowski, Mariusz P., Salzano, Vincenzo
Rok vydání:	2020
Předmět:	Astrophysics - Cosmology and Nongalactic Astrophysics General Relativity and Quantum Cosmology High Energy Physics - Theory
Zdroj:	Phys. Rev. D 102, 064047 (2020)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevD.102.064047
Popis:	A novel fractal structure for the cosmological horizon, inspired by COVID-19 geometry, which results in a modified area entropy, is applied to cosmology in order to serve dark energy. The constraints based on a complete set of observational data are derived. There is a strong Bayesian evidence in favor of such a dark energy in comparison to a standard $\Lambda$CDM model and that this energy cannot be reduced to a cosmological constant. Besides, there is a shift towards smaller values of baryon density parameter and towards larger values of the Hubble parameter, which reduces the Hubble tension. Comment: 10 pages, 5 figures, accepted for publication on Physical Review D (submitted 30 June 2020; accepted 3 September 2020)
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2009.08306 Zobrazit plný text záznamu View this record from Arxiv