239 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Universidade Federal do CearáBR40 papers
- Universidade Estadual do CearáBR10 papers
- Universidade Federal da ParaíbaBR6 papers
- Universidade Federal do CaririBR6 papers
- Universidade de São PauloBR5 papers
- Centro Brasileiro de Pesquisas FísicasBR4 papers
- Universidade Federal do Rio Grande do NorteBR4 papers
- Universidade de FortalezaBR3 papers
- University of LisbonPT3 papers
- Centro de Física Teórica e Computacional2 papers
- Complexity Science HubAT2 papers
- Instituto de Física de São CarlosBR2 papers
16 papers · 1 filter
Thin-shell wormholes in cosmic voids
Jonathan A. Rebouças, Edson Otoniel, Francisco S. N. Lobo
Cosmic voids are underdense regions that can provide an effective large-scale environment with a de Sitter-like gravitational behavior. Motivated by recent black-hole solutions emb…
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…
Are Padé approximants suitable for modelling shape functions of traversable wormholes?
Jonathan Alves Rebouças, Celio Rodrigues Muniz
This study investigates the applicability of Padé approximants in constructing suitable shape functions for traversable wormholes, emphasizing their ability to satisfy essential ge…
A note on the AdS/CFT correspondence and the nature of spacetime in quantum gravity
Carlos Silva
In this paper, we address the nature of spacetime in quantum gravity in light of a new version of the holographic principle that has established a relationship between string theor…
Four-dimensional regular black strings in bilocal gravity
C. R. Muniz, H. R. Christiansen, M. S. Cunha +1
In this paper, we obtain a static black string solution for a bilocal gravitational source in 3+1 dimensions. The solution is regular at the origin and tends asymptotically to the…
New regular 2+1 black hole solutions from bilocal gravity
H. R. Christiansen, Milko Estrada, M. S. Cunha +2
We obtain new regular black hole solutions for an action in 2+1 dimensions with bilocal Ricci scalar and negative cosmological constant. Besides their connection to the cosmologica…
The gravitational bending angle by static and spherically symmetric black holes in bumblebee gravity
I. D. D. Carvalho, G. Alencar, W. M. Mendes +1
This work investigates the influence of the Lorentz symmetry breaking in the bending angle of massive particles and light for bumblebee black hole solutions. The solutions analyzed…
Spin networks and the big bang singularity avoidance in the AdS/CFT correspondence
Carlos Silva
We propose a new version of the correspondence, where polymer structures similar to Loop Quantum Cosmology spin networks can be induced on an isotropic and homogeneous fl…
Polar gravitational perturbations and quasinormal modes of a loop quantum gravity black hole
M. B. Cruz, F. A. Brito, C. A. S. Silva
In this work, we have calculated the polar gravitational quasinormal modes for a quantum corrected black hole model, that arises in the context of Loop Quantum Gravity, known as Se…
Class of solutions of the Wheeler-DeWitt equation with ordering parameter
H. S. Vieira, V. B. Bezerra, C. R. Muniz +2
In this letter, we discuss the Wheeler-DeWitt equation with an ordering parameter in the Friedmann-Robertson-Walker universe. The solutions when the universe was very small and at…
Exact solutions of the Wheeler-DeWitt equation with ordering term in a dark energy scenario
C. R. Muniz, H. R. Christiansen, M. S. Cunha +1
We investigate the quantum evolution of the universe in the presence of two types of dark energies. First, we consider the phantom class () which would be responsible for a s…
Torsion braneworlds in a tensor-vector gravity
J. E. G. Silva, L. J. S. Sousa, W. T. Cruz +1
We study the properties of gravity and bulk fields living in a torsion warped braneworld. The torsion is driven by a background vector whose norm provides a source for the bulk cos…
Configurational entropy and Newton's Law in double sine-Gordon braneworlds
W. T. Cruz, D. M. Dantas, R. V. Maluf +1
In this work, we evaluate the Shannon-like entropic measure of spatially-localized functions for a five-dimensional braneworld generated by a double sine-Gordon (DSG) potential. Th…
Thermal Casimir effect in Kerr spacetime with quintessence and massive gravitons
V. B. Bezerra, H. R. Christiansen, M. S. Cunha +2
Starting from an analytical expression for the Helmholtz free energy we calculate the thermal corrections to the Casimir energy-density and entropy within nearby ideal parallel pla…
Probing nonlinear electrodynamics in slowly rotating spacetimes through neutrino astrophysics
Herman J. Mosquera Cuesta, Gaetano Lambiase, Jonas P. Pereira
Huge electromagnetic fields are known to be present during the late stages of the dynamics of supernovae. Thus, when dealing with electrodynamics in this context, the possibility m…
Relativistic Landau Levels in the Rotating Cosmic String Spacetime
M. S. Cunha, C. R. Muniz, H. R. Christiansen +1
In the spacetime induced by a rotating cosmic string we compute the energy levels of a massive spinless particle coupled covariantly to a homogeneous magnetic field parallel to the…