37 citations · 229 across the 28 of their papers we have counts for
29 papers
Geodesics and Thermodynamics of a Schwarzschild Black Hole with Hernquist Dark Matter
A. R. P. Moreira, A. Bouzenada, F. M. Belchior +1
In this work, we investigate the physical and geometrical properties of a Schwarzschild black hole (BH) immersed in a Hernquist dark matter halo. To accomplish our purpose, one bui…
Soft breaking of the symmetry in the theory
F. C. E. Lima, C. A. S. Almeida
We consider a two-dimensional scalar field theory that modifies the standard model by introducing a smooth breaking of translational invariance through a hyperbolic generaliz…
Mitigating the information degradation in a massive Unruh-DeWitt theory
P. H. M. Barros, F. C. E. Lima, C. A. S. Almeida +1
We investigated the influence of the massive scalar field on the information degradation concerning the Unruh-DeWitt (UDW) detectors. In this conjecture, we adopted a system with a…
Magnetized vortex in three-dimensional gravity
F. C. E. Lima
Modified Gravity Theories (MGTs) are extensions of General Relativity (GR) in its standard formulation. Therefore, within this framework, we will investigate a system composed of a…
Kinks and double-kinks in generalized -and -models
F. C. E. Lima, R. Casana, C. A. S. Almeida
Examining the and models within a two-dimensional framework in the flat spacetime and embracing a theory with unconventional kinetic terms, one investigates the eme…
On the asymmetric non-canonical braneworld in five dimensions
F. C. E. Lima, F. M. Belchior, C. A. S. Almeida +1
Revisiting Einstein's gravitational theory, we build a five-dimensional braneworld. Within this framework, one announces the appearance of symmetric and asymmetric domain walls. Fu…
Physical aspects of the deformation of kinks in a generalized model
F. C. E. Lima, C. A. S. Almeida, Rodolfo Casana
We study a generalized model that gives rise to BPS kink/antikink configurations with compacton-like profiles. One observes that the positive parameter controlling the genera…
Effects of quantum fluctuations of the metric on a braneworld
C. A. S. Almeida, F. C. E. Lima
Adopting the premise that the expected value of the quantum fluctuating metric is linear, i.e., , we analyze the modified gravity theory induced by t…
Non-Hermitian fermions with effective mass
F. C. E. Lima, L. N. Monteiro, C. A. S. Almeida
In this work, we readdress the Dirac equation in the position-dependent mass (PDM) scenario. Here, one investigates the quantum dynamics of non-Hermitian fermionic particles with e…
Quantum information entropy of heavy mesons in the presence of a point-like defect
C. A. S. Almeida, C. O. Edet, F. C. E. Lima +2
Using Schrödinger's formalism, we investigate the quantum eigenstates of the heavy mesons trapped by a point-like defect and by Cornell's potential. One implements this defect to t…
Topological solitons in the sigma-cuscuton model
F. C. E. Lima, C. A. S. Almeida
Building a multi-field theory with canonical and non-canonical contributions, one studies the topological solitons of the O(3)-sigma model. We propose a model constituted by the O(…
Geometrically contracted structure in teleparallel gravity
A. R. P. Moreira, F. C. E. Lima, C. A. S. Almeida
In the teleparallel gravity scenario, we consider a five-dimensional thick brane. This scenario is interesting because this theory can provide explanations for inflation, ra…
Quantum information entropy of a particle trapped by the Aharonov-Bohm-type effect
F. C. E. Lima, A. R. P. Moreira, C. A. S. Almeida +2
In this research article, we use the Shannon's formalism to investigate the quantum information entropy of a particle trapped by the Aharonov-Bohm-type effect. For quantum informat…
Quantum information of the Aharanov-Bohm ring with Yukawa interaction in the presence of disclination
C. O. Edet, F. C. E. Lima, C. A. S. Almeida +2
We investigate the quantum information by a theoretical measurement approach of an Aharanov-Bohm (AB) ring with Yukawa interaction in curved space with disclination. It obtained th…
Properties of black hole vortex in Einstein's gravity
F. C. E. Lima, A. R. P. Moreira, C. A. S. Almeida
We investigate the influence of the matter field and the gauge field on the metric functions of the AdS spacetime of the Maxwell-Higgs model. By considering a matter field with…
New class of solutions in the non-minimal O(3)-sigma model
F. C. E. Lima, C. A. S. Almeida
For the study of topological vortices with non-minimal coupling, we built a kind of non-canonical O(3)-sigma model, with a Maxwell term modified by a dielectric function. Through t…
Exponentially generalized vortex
F. C. E. Lima, C. A. S. Almeida
In this work, we propose an exponentially generalized Abelian model. We investigated the presence of vortex structures in models coupled to Maxwell and Chern-Simons fields. We chos…
Differential configurational complexity and phase transitions of the BPS solutions in the O(3)-sigma model
F. C. E. Lima, C. A. S. Almeida
Using a spherically symmetric ansatz, we show that the Chern-Simons O(3)-sigma model with a logarithmic potential admits topological solutions. This result is quite interesting sin…
Phase transitions in the logarithmic Maxwell O(3)-sigma model
F. C. E. Lima, C. A. S. Almeida
We investigate the presence of topological structures and multiple phase transitions in the O(3)-sigma model with the gauge field governed by Maxwell's term and subject to a so-cal…
Compact-like vortices in isotropic curved spacetime
F. C. E. Lima, C. A. S. Almeida
We introduced a generalized Maxwell-Higgs model in a isotropic spacetime, and we found their stationary solutions using the BPS approach in curved spacetime. In order to in…
Quantum information entropies for a soliton at hyperbolic well
F. C. E. Lima
In this work, the probability uncertainties related to a stationary quantum system with solitonic mass distribution when subjected to deformable hyperbolic potentials are studied.…
Configurational Entropy and braneworlds in f(T,B) gravity
A. R. P. Moreira, F. C. E. Lima, C. A. S. Almeida
The thick brane scenario built on the f(T,B) teleparallel gravity theory was considered for the study of phase transitions, internal structures, and new classes of solutions in a m…
Topological structures in a non-canonical perturbative dynamics of a cuscuton-like model
F. C. E. Lima, A. Yu. Petrov, C. A. S. Almeida
In this work, a possible description for quantum dynamics of the cuscuton within the sigma-model approach is presented. Lower order perturbative corrections and the structure of di…
Vortex solutions in nonpolynomial scalar QED
F. C. E. Lima, A. Yu. Petrov, C. A. S. Almeida
In order to investigate possible topological vortex structures in generalized models, we developed a perturbative generation approach for scalar-vector theories. We demonstrate exp…