2 citations · 2 across the 10 of their papers we have counts for
14 papers
Supercritical Branching Random Walks on Nested Lattices
Elena Yarovaya
In classical models of supercritical continuous-time branching random walks (BRWs) on a -dimensional lattice, the dimension is typically assumed to be fixed. When comparing…
Traversable Hyperbolic Wormholes with a Casimir-Memory Source: Complexity and Shell-Free Matching
Celio R. Muniz, Roberto Avalos, Jonathan A. Rebouças +2
Hyperbolically symmetric wormholes provide a setting in which negative energy densities arise from the throat geometry and finite matter configurations can be matched to the hyperb…
Optical effects of one-sided Kiselev-type quintessence in reflection-asymmetric polymer thin-shell wormholes
Jonathan A. Rebouças, Edson Otoniel
Strong-field rays that traverse a wormhole can carry optical information about an exterior inaccessible to the observer. We investigate this mechanism in a reflection-asymmetric th…
Teleparallel torsion and white dwarf structure in \(f(T)=T+ΞT^2\) gravity
Edson Otoniel, Jonathan A. Reboucas, Iarley P. Lobo
We investigate how quadratic torsion modifies the equilibrium structure of white dwarfs in covariant gravity. Static spherical configurations are calculated with a fi…
Symmetric Thin-Shell Wormholes from a Regularized String-Cloud Black Hole: Energy Conditions, Multi-Fluid Stability, and Optical Signatures
Zijun Zhong, Jonathan A. Reboucas, Edson Otoniel +1
We construct a symmetric thin-shell wormhole from two copies of the positive-lapse exterior of a rationally regularized Letelier--Alencar string-cloud black hole with a finite-curv…
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…
Bayesian constraints on quadratic gravity from the ADM mass of white dwarfs
Edson Otoniel, Lucas A. Souza, Jonathan A. Rebouças +1
We calculate static equilibrium sequences for white dwarfs (WDs) in quadratic symmetric teleparallel gravity, f(Q)=Q+alpha Q^2, and perform a Bayesian comparison between the negati…
White Dwarf Stellar Structure from Effective Polymer Geometry in Loop Quantum Gravity
Edson Otoniel, Jonathan A. Rebouças, M. C. Araújo +1
We construct an effective Tolman Oppenheimer Volkoff system for cold carbon white dwarfs using the areal radius form of a polymer metric sector motivated by loop quantum gravity. T…
Junction Conditions, Radial Stability, Thermodynamics, Optical Geometry and Appearance of Polymer-Quintessence Thin-Shell Wormholes
Jonathan A. Rebouças, Edson Otoniel, M. C. Araújo +2
Thin-shell wormholes built from effective black hole geometries are sensitive not only to the lapse function but also to the choice of areal radius. We construct a reflection-symme…
Gravitational Lensing in a Kasner Background: Distinguishing Wormholes and Black Holes
Celio R. Muniz, Jonathan A. Rebouças, M. B. Cruz +1
We investigate gravitational lensing by compact objects embedded in anisotropic Bianchi-I cosmologies using directional Jacobi maps within the thin-lens approximation. The formalis…
Thin-Shell Wormholes from Entropy-Induced Black-Hole Geometries
Jonathan A. Rebouças, Edson Otoniel
Modified black-hole entropies can induce effective spacetime geometries and thereby provide a thermodynamic route for investigating thin-shell wormholes. In this work, we construct…
Traversable Wormholes Supported by Entropy-Inspired Effective Matter Sectors
Jonathan A. Rebouças, Francisco Bento Lustosa, Celio R. Muniz
The thermodynamic interpretation of gravity suggests that modifications of horizon entropy can be encoded in effective geometries and matter distributions. Motivated by the entropy…
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…