29 citations · 78 across the 11 of their papers we have counts for
11 papers
Black-bounce solutions in a k-essence theory under the effects of bumblebee gravity
Carlos F. S. Pereira, Marcos V. de S. Silva, H. Belich +3
In the present study, we analyze the effects of violation of Lorentz symmetry for black-bounce solutions in a -essence theory that has the form of a power law for the configurat…
Magnetically charged black-bounce solution via nonlinear electrodynamics in a k-essence theory
Carlos F. S. Pereira, Denis C. Rodrigues, Marcos V. de S. Silva +3
In the present work, we obtain and analyze a new class of analytical solutions of magnetically charged black bounces in k-essence theory, spherically symmetric in (3+1)-dimensions,…
New sources of ghost fields in -essence theories for black-bounce solutions
Carlos F. S. Pereira, Ébano L. Martins, Denis C. Rodrigues +2
In the present study, we generalize the possible ghost field configurations within the framework of -essence theory to the Simpson-Visser metric area function . Our…
Black-bounce solution in -essence theories
Carlos F. S. Pereira, Denis C. Rodrigues, Júlio C. Fabris +1
In the present work, we construct black-bounce configurations in the context of -essence theory. The solutions have a regular metric function at the origin. The area metric func…
Black hole and wormhole solutions in Einstein-Maxwell-Scalar theory
Júlio C. Fabris, Tales A. O. Gomes, Denis C. Rodrigues
We classified and studied the charged black hole and wormhole solutions in the Einstein--Maxwell system in the presence of a massless, real scalar field. The possible existence of…
Quantization of a Black-Hole Gravity: geometrodynamics and the quantum phase-space formalism
Carla Rodrigues Almeida, Denis Campos Rodrigues
Quantum gravity is effective in domains where both quantum effects and gravity are essential, such as in the vicinity of space-time singularities. This paper will investigate the q…
Rastall's theory of gravity: Spherically symmetric solutions and the stability problem
K. A. Bronnikov, Júlio C. Fabris, Oliver F. Piattella +2
We study the stability of static, spherically symmetric solutions of Rastall's theory in the presence of a scalar field with respect to spherically symmetric perturbations. It is s…
On the instability of some k-essence space-times
K. A. Bronnikov, J. C. Fabris, Denis C. Rodrigues
We study the stability properties of static, spherically symmetric configurations in k-essence theories with the Lagrangians of the form , . The insta…
Duality between k-essence and Rastall gravity
Kirill A. Bronnikov, Julio C. Fabris, Oliver F. Piattella +2
The k-essence theory with a power-law function of and Rastall's non-conservative theory of gravity with a scalar field are shown to have the same solutions for the…
On Black Hole Structures in Scalar-Tensor Theories of Gravity
Kirill A. Bronnikov, Júlio C. Fabris, Denis C. Rodrigues
We review some properties of black hole structures appearing in gravity with a massless scalar field, with both minimal and nonminimal coupling. The main properties of the resultin…
On horizons and wormholes in k-essence theories
K. A. Bronnikov, J. C. Fabris, D. C. Rodrigues
We study the properties of possible static, spherically symmetric configurations in k-essence theories with the Lagrangian functions of the form , . A…