2025/09/15 by Rodrigo Rivadeneira‐Caro, Rivadeneira-Caro, Rodrigo, Joel Saavedra +3
Physics and Astronomy · Earth and Planetary Sciences · #Solar and Space Plasma Dynamics #Cosmology and Gravitation Theories #Geophysics and Gravity Measurements
paper · pdf · doi:10.48550/arxiv.2509.11919
This work considers how exponential corrections to the Bekenstein-Hawking entropy formula affect the thermodynamic behavior of the FLRW cosmological model. These corrections drastically change the form of the Friedman field equations inducing non-trivial phase transition behavior. For negative values of the trace parameter α, the system presents first-order phase transitions above the critical temperature, and for positive α, the system undergoes a reentrant phase transition. As these corrections are presumably relevant at the early Universe stage, to corroborate the presence of some potential vestige of this contribution in the current era, a study has been carried out comparing observational data and current values of the Hubble parameter.