activity
20242026
most citedBound and Scattering States in a Spacetime with Dual Topological Defects: Cosmic String and Global Monopole

6 citations · 8 across the 10 of their papers we have counts for

collaborators

10 papers

gr-qc2026

Regular fluid of strings black hole with non trivial core and asymptotic structure by gravitational decoupling

Milko Estrada, Luis C. N. Santos, Leonardo G. Barbosa

Cloud-of-strings (CS) geometries provide an effective description of one-dimensional string distributions. However, their central singularity cannot be removed through the standard…

gr-qc2026

Scalar Bosons with Coulomb Potentials in a Space with Dual Topological Defects in Rainbow Gravity

L. G. Barbosa, J. V. Zamperlini, L. C. N. Santos

This work studies the relativistic quantum dynamics of scalar bosons in a spacetime containing both a cosmic string and a global monopole within the framework of Rainbow Gravity. A…

gr-qc2026

Kiselev black strings in gravity

L. C. N. Santos, L. G. Barbosa, C. C. Barros

In this work, we investigate exact black string solutions in the context of gravity. Adopting the specific form , we consider an anisotropic Kiselev flui…

gr-qc2025

Charged scalar boson in Melvin universe

L. G. Barbosa, L. C. N. Santos, J. V. Zamperlini +2

This work investigates the dynamics of a charged scalar boson in the Melvin universe by solving the Klein-Gordon equation with minimal coupling in both inertial and non-inertial fr…

gr-qc2025

Black holes as gravitational mirrors

L. C. N. Santos, F. M. da Silva, C. R. Muniz +1

Retrolensing is a gravitational lensing effect in which light emitted by a background source is deflected by a black hole and redirected toward the observer after undergoing nearly…

gr-qc2025★ 2 cited

Cornell and Coulomb potentials in the double defect spacetime

L. G. Barbosa, L. C. N. Santos, J. V. Zamperlini +1

We analyze the quantum dynamics of a scalar field in a spacetime incorporating dual topological defects, specifically a cosmic string and a global monopole. Utilizing a generalized…

gr-qc2025★ 6 cited

Bound and Scattering States in a Spacetime with Dual Topological Defects: Cosmic String and Global Monopole

L. G. Barbosa, L. C. N. Santos, J. V. Zamperlini +1

This paper explores the relativistic quantum motion of scalar bosons in the presence of mixed topological defects: cosmic strings and global monopoles. The Klein-Gordon equation wi…

gr-qc2025

Revisiting black holes surrounded by cloud and fluid of strings in general relativity

Luis Cesar Nunes dos Santos

This paper revisits black hole solutions surrounded by clouds and fluids of strings within the framework of general relativity. We introduce a generalized equation of state for a f…

gr-qc2024

Regular black holes from Kiselev anisotropic fluid

Luis C. N. Santos

In this paper, we investigate a generalization of Kiselev black holes by introducing a varying equation of state parameter for the anisotropic fluid surrounding the black hole. We…

nucl-th2024

Strongly Interacting Quark Matter in Massive Quark Stars

Adamu Issifu, Franciele M. da Silva, Luis C. N. Santos +2

This paper investigates the properties of strongly coupled matter at high baryon densities (\(ρ_B\)) in quark stars (QSs). The QS model is based on the density-dependent quark mass…