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 Λ CDM model and that this energy cannot be reduced to a cosmological constant. Besides, there is a shift toward smaller values of baryon density parameter and toward larger values of the Hubble parameter, which reduces the Hubble tension.
Physical Review D
- Pub Date:
- September 2020
- Astrophysics - Cosmology and Nongalactic Astrophysics;
- General Relativity and Quantum Cosmology;
- High Energy Physics - Theory
- 10 pages, 5 figures, accepted for publication on Physical Review D (submitted 30 June 2020