6 papers
Perturbative aspects of analogue FLRW spacetime Jellium models
Matheus E. Pereira, Hermano Velten, Francisco B. Lustosa +1
We study electro-acoustic perturbative modes in homogeneous, isotropic and expanding -- dubbed as Friedmann-Lemaitre-Robertson-Walker (FLRW) -- Jellium models, thereby mimicking de…
Regularized Black Hole Solution from a New String Cloud Source
C. R. Muniz, Jonathan Alves Rebouças, Leonardo Tavares de Oliveira +2
We construct a new family of regular black hole solutions supported by the novel Letelier-Alencar string cloud and regularized through a rational Dagum-type distribution. The regul…
Black holes inside cosmic voids
Francisco Bento Lustosa, Milko Estrada, Marcony S. Cunha +1
This study examines the gravitational and thermodynamic properties of static, spherically symmetric black holes within cosmic voids -- vast underdense regions of the universe. By d…
Quantum improved wormholes in the Dekel-Zhao dark matter halo
Jonathan A. Rebouças, Celio R. Muniz, Francisco Bento Lustosa +1
This work presents and investigates novel traversable wormhole solutions within the framework of Asymptotically Safe Gravity (ASG), sourced by a dark matter halo modeled by the Dek…
Einstein-Yang-Mills Regular Black Holes in Rainbow Gravity
Célio R. Muniz, Francisco Bento Lustosa, Takol Tangphati
In this work, we investigate regular black hole solutions in nonminimal Einstein-Yang-Mills theory modified by Rainbow Gravity, focusing on the impact of quantum gravity effects on…
Dynamical analysis of quantum matter bounces with dark sector mimickers
Francisco Bento Lustosa, Nelson Pinto-Neto
We study the effects of the inclusion of fluids In bounce scenarios driven by an exponential potential scalar field. Most solutions exhibit well known tracking behavior between the…