94 citations · 950 across the 111 of their papers we have counts for
13 papers · 1 filter
Field Sources for Wormholes With Multiple Throats/Anti-throats
T. M. Crispim, Marcos V. de S. Silva, G. Alencar +2
In this work, we investigate wormhole geometries with multiple throats and anti-throats in general relativity. The existence of these structures is identified through the analysis…
Traversable Wormholes Sourced by Dark Matter in Loop Quantum Cosmology
Marcos V. de S. Silva, G. Alencar, R. N. Costa Filho +2
In this work, we investigate the existence of wormholes within the framework of Loop Quantum Cosmology, using isotropic dark matter as the source. We analyze three distinct density…
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…
A way of decoupling the gravitational bulk field equations of regular braneworld black holes to suppress the bulk singularities
Milko Estrada, T. M. Crispim, G. Alencar
We provide a methodology for decoupling the bulk gravitational field equations of braneworld black holes to suppress the bulk singularities. Thus, we provide a regular braneworld b…
Field Sources for Black-Bounce Solutions: The Case of K-Gravity
G. Alencar, M. Nilton, Manuel E. Rodrigues +1
In the framework of Simpson-Visser, the search for field sources that produce black-bounces in alternative gravity theories has remained unresolved. In this paper, the first in a s…
Static and stationary loop quantum black bounces
C. R. Muniz, G. Alencar, M. S. Cunha +1
We explore a static and stationary black bounce geometry inspired by Loop Quantum Gravity (LQG), focusing on how LQG corrections and regularization parameters affect its properties…
Braneworld Black Bounce to Transversable Wormhole Analytically Connected to an asymptotically Boundary
T. M. Crispim, G. Alencar, Milko Estrada
We extend the recent approach from reference [1] to obtain complete and analytic solutions (both brane and bulk) of a Simpson-Visser (SV) geometry within a braneworld framework. Th…
Braneworld Black Bounce to Transversable Wormhole
Tiago M. Crispim, Milko Estrada, C. R. Muniz +1
We provide a way for embedding a 4-dimensional geometry corresponding to the Simpson Visser (SV) spacetime which is capable of representing a traversable wormhole, a one-way wormho…
Constraints on Bulk Fields: No-Go Conjectures for Braneworld Models
G. Alencar, M. Gogberashvili, R. N. Costa Filho
This work establishes a series of no-go conjectures that impose rigorous constraints on the localization of bulk fields in braneworld scenarios, specifically affecting gauge and sp…
Quantized -form Gauge Field in D-dimensional de Sitter Spacetime
E. W. D. Dantas, G. Alencar, I. Guedes +1
In this work, we utilize the dynamic invariant method to obtain a solution for the time-dependent Schrödinger equation, aiming to explore the quantum theory of a -form gauge fie…
Thermodynamics and Quasinormal Modes of the Dymnikova Black Hole in Higher Dimensions
M. H. Macêdo, J. Furtado, G. Alencar +1
In this study, we investigate the thermodynamic properties and quasinormal modes of Dymnikova black holes within the context of higher dimensions in Einstein's general theory of re…
On black bounce space-times in non-linear electrodynamics
G. Alencar, Kirill A. Bronnikov, Manuel E. Rodrigues +2
One of the main issues in gravitation is the presence of singularities in the most common space-time solutions of General Relativity, as the case of black holes. A way of construct…
A New Braneworld with Conformal Symmetry Breaking
G. Alencar, I. C. Jardim, R. I. de Oliveira Junior +2
We explore the conformal 5D braneworld, where warping emerges through conformal symmetry breaking. Our scenario seamlessly aligns with conventional brane approaches if conformal sy…