3 papers
gr-qc2026
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…
gr-qc2026
The scalar--Maxwell-- system: Wormhole spacetimes without nonlinear electrodynamics in unimodular gravity
G. Alencar, T. M. Crispim
In General Relativity, supporting known traversable wormhole geometries with electromagnetic fields typically requires complex Non-Linear Electrodynamics (NED). We demonstrate that…
gr-qc2026
On regular black string spacetimes in nonlinear electrodynamics
G. Alencar, V. H. U. Borralho, T. M. Crispim +1
In this work, we investigate the coupling of General Relativity with Nonlinear Electrodynamics (NED), governed by a general Lagrangian , to address the ax…