5 papers · 1 filter
Generalized Polytropic Regular Black Holes in Arbitrary Dimensions
Seyed Naseh Sajadi, Supakchai Ponglertsakul, Petarpa Boonserm +2
We investigate static, spherically symmetric regular black holes with anti-de Sitter (AdS) asymptotics in arbitrary spacetime dimensions. They are solutions of Einstein gravity, so…
Solving Einstein's Vacuum Equations with Physics-Informed Neural Networks: Boundary Conditions and Domain Decomposition
Elly Bayona, Hernando Quevedo
We investigate the application of Physics-Informed Neural Networks (PINNs) to the numerical solution of Einstein's vacuum field equations for static spacetimes. We first reproduce…
Geometric Universality and Thermodynamic Microstructure of Real Fluids in a Unified Entropic Framework
Carlos E. Romero-Figueroa, Jose Miguel Ladino, Sasha A. Zaldivar +1
We introduce a unified entropic framework for real fluids that encompasses the van der Waals, Berthelot, Redlich Kwong, and Peng Robinson equations of state within a common thermod…
Quasi-homogeneous geometrothermodynamics of a noncommutative Reissner-Nordstrom black hole
Alberto Maya, Hernando Quevedo
We present the thermodynamic properties of a noncommutative Reissner Nordstrom (NCRN) black hole (BH) modeled with Lorentzian distributions. The analysis is carried out using a Leg…
Quasi-Homogeneous Thermodynamics and Microscopic Structure of the Quantum-Corrected FLRW Universe
Carlos E. Romero-Figueroa, Hernando Quevedo
The analysis of phase transitions in cosmological spacetimes shows that their existence requires a time-dependent apparent horizon radius, which in turn implies an equation of stat…