Article · International Journal of Modern Physics D · July 25, 2025
Primordial black hole-driven cosmic acceleration
Konstantinos F. Dialektopoulos, Theodoros Papanikolaou, Vasilios Zarikas
Abstract
In this paper, we propose a natural mechanism for cosmic acceleration driven by Primordial Black Holes (PBHs) with repulsive behavior, within a Swiss Cheese cosmological framework. Considering regular black hole spacetimes such as Hayward, Bardeen and Dymnikova as well as the singular Schwarzschild-de Sitter case we consistently find a robust PBH-driven cosmic acceleration phase. This phase ends either at an energy scale set by the PBH parameters or through black hole evaporation. Notably, one finds that ultra-light PBHs with [Formula: see text][Formula: see text]g can trigger exponential inflation with graceful exit and reheating. Additionally, PBHs with [Formula: see text][Formula: see text]g and abundances [Formula: see text] near matter-radiation equality can act as an early dark energy component, offering a potential resolution to the Hubble tension.
More by Vasilios Zarikas
- Inflation driven by repulsive-like primordial black holesCorfu Summer Institute School and Workshops on Elementary Particle Physics and Gravity · 2026
- Inflation driven by repulsive-like primordial black holesarXiv · 2026
- Cosmologically Coupled Black holes and Asymptotic Safe GravityCorfu Summer Institute School and Workshops on Elementary Particle Physics and Gravity · 2025
- Review of Artificial Intelligence Techniques for Breast Cancer Detection with Different Modalities: Mammography, Ultrasound, and Thermography ImagesBioengineering · 2025 · Citations: 17