14 papers
Distinguishing wormholes via Einstein rings and global curvature
M. B. Cruz, C. R. Muniz, R. M. P. Neves +1
In this work, we investigate the gravitational lensing properties of a static Ellis-Bronnikov wormhole embedded in a curved Friedmann-Lemaître-Robertson-Walker (FLRW) universe. By…
Traversable Casimir Wormholes with Gravitational Memory
Jonathan A. Rebouças, Francisco Bento Lustosa, Celio R. Muniz
We investigate a class of traversable wormhole geometries supported by an effective Casimir source corrected by gravitational memory. The construction is motivated by the fact that…
Traversable Wormholes Supported by Entropy-Inspired Effective Matter Sectors
Jonathan A. Rebouças, Francisco Bento Lustosa, Celio R. Muniz
The entropic interpretation of gravity suggests that spacetime geometry may encode thermodynamic information associated with microscopic degrees of freedom. In this context, the en…
Geometrically Regular Black Object Solutions in Lower-Dimensional Gauss-Bonnet Gravity and Its Unimodular Extension
G. Alencar, T. M. Crispim, C. R. Muniz
We investigate the construction of regular compact objects in the recently proposed lower-dimensional Einstein--Gauss--Bonnet (EGB) gravity obtained through regularized dimensional…
Field Sources for Generalized Ellis-Bronnikov Wormhole
T. M. Crispim, G. Alencar, C. R. Muniz
The so-called generalized Ellis-Bronnikov wormhole is a modification of the standard Ellis-Bronnikov solution, in which a parameter is introduced-recovering the original Elli…
Field Sources for Dark Matter Black Holes
G. Alencar, C. R. Muniz, Francisco Tello-Ortiz
We investigate the field-theoretic realization of regular black holes sourced by dark matter halo profiles within nonlinear electrodynamics (NED) minimally coupled to gravity. Star…