3 papers
gr-qc2026
Penrose-Rindler equation and horizon thermodynamics of stationary black holes
Diego Fernández-Silvestre, Alberto Guilabert, Pedro Bargueño +1
Black holes are the natural arena for exploring the interplay between gravity and thermodynamics. Although the association between black hole mechanics and black hole thermodynamic…
gr-qc2025
Traversable ghost wormholes
Alberto Guilabert, Ernesto Fuenmayor, Pedro Bargueño +1
Ghost stars are compact configurations characterized by an arbitrarily small total mass. Such objects require regions of negative energy density -a condition typically regarded as…
gr-qc2025
The Smarr formula within the Geroch-Held-Penrose formalism
Alberto Guilabert, Pedro Bargueño
The connection between classical thermodynamics and black hole horizons is a fundamental topic in gravitational physics, offering a potential pathway to understanding quantum aspec…