19 citations · 24 across the 5 of their papers we have counts for
6 papers
Five-dimensional thick branes in the scalar representation of gravity
F. C. E. Lima, F. M. Belchior, C. A. S. Almeida
One examines a codimension-one thick braneworld in the scalar representation of gravity, where is the nonmetricity scalar, and is the boundary term satisfying $R=Q…
Topological and self-dual vortices in a double sigma model with Maxwell coupling
Francisco C. E. Lima, Fernando M. Belchior, Allan R. P. Moreira
In this work, we construct a double O(3)-sigma model minimally coupled to a Maxwell field in (2+1)-dimensional spacetime and investigate the existence of self-dual magnetic vortex…
Scalaron excitation by topological vortices in quadratic gravity on a BTZ black hole background
C. A. S. Almeida, F. C. E. Lima
In three spacetime dimensions, pure Einstein gravity admits no local propagating degrees of freedom, yet nontrivial gravitational backgrounds such as the BTZ black hole provide a n…
Differential configurational entropy for multi-field of the theory
F. C. E. Lima, C. A. S. Almeida
The topological structures of a theory with multi-field are studied. The theory is interesting because it is a theory that allows the shrinkage of topological structure…
Aspects of kink-like structures in 2D dilaton gravity
F. C. E. Lima, C. A. S. Almeida
The topological structures that arise from two-dimensional models are relevant physically and the first step towards understanding more complex systems. In this work, one studies t…
First-order formalism for thick branes in gravity
A. R. P. Moreira, F. C. E. Lima, J. E. G. Silva +1
In this paper, we study the thick brane scenario constructed in the recently proposed theories of gravity, where is called the torsion scalar, and $\mathcal{…