5 papers
Geometrothermodynamics of Black Hole Shadows: A Review
Hernando Quevedo, Jose M. Ladino, Carlos E. Romero-Figueroa +1
Black-hole shadows and geometrothermodynamics (GTD) are defined in different spaces but depend on the same macroscopic black-hole parameters. We review their correspondence for Rei…
Naked Singularities and Black Hole Thermodynamics from Shadows and Photon Rings in the Quantum Oppenheimer-Snyder Model
Jose Miguel Ladino, Anuar Idrissov, Carlos E. Romero-Figueroa +1
We investigate the optical and thermodynamic properties of quantum Oppenheimer-Snyder (qOS) spacetimes in both the black hole and naked singularity regimes. By analyzing test-parti…
Dark-Sector Effects on the Phase Structure of Nonlinear Magnetic AdS Black Holes
Carlos E. Romero-Figueroa, J. R. Villanueva
We investigate the effects of perfect fluid dark matter (PFDM) and a dark-energy field on the phase structure of a nonlinear magnetically charged Anti--de Sitter (NLMC--AdS) black…
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…
Probing Black Hole Thermodynamics and Microstructure via the Shadow of Sagittarius A*
Jose Miguel Ladino, Carlos E. Romero-Figueroa, Hernando Quevedo
We explore the connection between black hole shadows, thermodynamic phase structure, and microstructure of charged and rotating black holes within General Relativity and Geometroth…