3 papers
hep-th2026
Stable Black Strings from Warped Backgrounds
Sylvain Fichet, Eugenio Megias, Mariano Quiros +1
We show that spacetime curvature alone can classically stabilize black strings. Working within a consistent five-dimensional dilaton-gravity system with a flat brane, we find that…
hep-th2026
Holographic Dark Matter
Sylvain Fichet, Eugenio Megias, Mariano Quiros
Cold dark matter may be a fluid (or plasma) residing in a strongly-interacting hidden sector, rather than a population of weakly-coupled particles. Such a scenario admits a hologra…
hep-th2024
Entanglement Entropy and Thermal Phase Transitions from Curvature Singularities
Sergio Barbosa, Sylvain Fichet, Eugenio Megias +1
We study holographic entanglement entropy and revisit thermodynamics and confinement in the dilaton-gravity system. Our analysis focuses on a solvable class of backgrounds that inc…