248 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- R. Casana71 · h 23
- M. M. Ferreira4 profiles69 · h 19
- Edilberto O. Silva3 profiles59 · h 18
- L. B. Castro3 profiles36 · h 17
- M. Schreck27 · h 19
- F. M. Andrade22 · h 17
- F. Simas21 · h 11
- A. R. Gomes20 · h 19
- C. Filgueiras19 · h 17
- E. da Hora3 profiles17 · h 5
- D. Bazeia2 profiles16 · h 40
- J. Reis2 profiles16 · h 8
- Universidade Federal da ParaíbaBR41 papers
- Universidade Estadual Paulista (Unesp)BR27 papers
- Instituto Federal do MaranhãoBR26 papers
- Universidade Federal do CearáBR24 papers
- Universidade Estadual de Ponta GrossaBR23 papers
- Universidade Federal de Campina GrandeBR21 papers
- Universidade de São PauloBR16 papers
- Universidade Federal de LavrasBR16 papers
- Universidade Federal do Espírito SantoBR16 papers
- Universidade Federal de Santa CatarinaBR15 papers
- Centro Brasileiro de Pesquisas FísicasBR14 papers
- Universidade Estadual da Região Tocantina do MaranhãoBR12 papers
178 papers · 1 filter
Exact BPS double-kinks in generalized , and sine-Gordon models
R. Casana, E. da Hora, F. C. Simas
We consider a -dimensional theory with a single real scalar field whose kinematics is modified by a generalizing function . After briefly reviewing its Bogomol'nyi…
Probing the Black Hole Interior with Holographic Entanglement Entropy and the Role of AdS/BCFT Correspondence
Fabiano F. Santos
This work explores the black hole information loss paradox, a fundamental challenge in theoretical physics. It proposes insights using Holographic Entanglement Entropy (HEE) and th…
Kinks in generalized scalar field models and their scattering properties
D. Bazeia, A. S. Lobão, Fabiano C. Simas
This work investigates kink solutions in one-dimensional scalar field theories. We begin with a review of the formalism used to obtain these solutions, presenting the BPS formalism…
Fermions in -dimensions modified by nonminimal coupling and its applications to condensed matter physics
J. A. A. S. Reis, L. Lisboa-Santos, Fabiano M. Andrade +2
Fermions in two-dimensional space, commonly called -dimensional fermions, exhibit intriguing and distinctive characteristics that distinguish them from their higher-dimensio…
Effects of the Lorentz symmetry violation on relativistic neutral scalar bosons: Scattering and bound states
Luis B. Castro, Antonio S. de Castro
In this letter, we investigate the effects of Lorentz symmetry violation on a relativistic neutral scalar boson within the framework of the Klein-Gordon formalism. We consider a te…
Nonperturbative Lorentz Violation and Field Quantization
Alan Kostelecky, Ralf Lehnert, Marco Schreck +1
Regimes of Lorentz-violating effective field theories are studied in which departures from Lorentz symmetry are nonperturbative. Within a free toy theory exhibiting Lorentz breakdo…
Sine-Gordon kink lattice
E. da Hora, C. dos Santos, Fabiano C. Simas
We consider an extended model with two real scalar fields, and . The first sector is controlled by the sine-Gordon superpotential, while the second field is submit…
Holographic Boundary Conformal Field Theory within Horndeski Gravity
Fabiano F. Santos, Behnam Pourhassan, Emmanuel N. Saridakis +3
We investigate entanglement islands and the Page curve in the framework of Horndeski gravity on a Karch-Randall braneworld background. In particular, treating the holographic bound…
Fermion bound states from Yukawa coupling with periodic bosonic background
Dionisio Bazeia, Fabiano C. Simas
The Yukawa coupling of fermions with a periodic bosonic background is shown to give rise to several bound states to the fermionic spectrum, with some bound states gluing together a…
Dynamics of massive and massless particles in the spacetime of a wiggly cosmic dislocation
Frankbelson dos S. Azevedo, Edilberto O. Silva
In this paper, we investigate the spacetime containing both small-scale structures (wiggles) and spatial dislocation, forming a wiggly cosmic dislocation. We study the combined eff…
Geometrically constrained sine-Gordon field: BPS solitons and their collisions
E. da Hora, L. Pereira, C. dos Santos +1
We consider an enlarged -dimensional model with two real scalar fields, and whose scalar potential has a standard sector and a sine-Gordon one for …
Geometric Josephson junction
Fabiano F. Santos, Henrique Boschi-Filho
In this work, we present a gravitational dual to a constriction Josephson junction constructed from the AdS/BCFT correspondence. On the gravity side, we consider a planar AdS-Schwa…
Restricted baby Skyrme-Maxwell theory in a magnetic medium: BPS configurations and some properties
J. Andrade, R. Casana, E. da Hora +1
We study the existence of BPS configurations in a restricted baby Skyrme-Maxwell enlarged via the inclusion of a nontrivial magnetic permeability. In order to attain such a goal, w…
On the electromagnetic interaction and the anomalous term in the Duffin-Kemmer-Petiau theory
Andrés G. Jirón, Luis B. Castro, Antonio S. de Castro +1
The problem of vectorial mesons embedded in an electromagnetic field via Duffin-Kemmer-Petiau (DKP) formalism is reinvestigated. Considering the electromagnetic interaction as a mi…
Vacuum state perturbed by an oscillon: composite configurations in model
Fabiano C. Simas, E. da Hora
We examine the evolution of a vacuum configuration when perturbed by an oscillon. We consider the scenario with a single scalar field only. For highly excited oscillons, we f…
q-Deformed glueballs spectrum in AdS/QCD correspondence
Fabiano F. Santos, F. A. Brito
This work presents the application of the q-algebra in the glueballs spectrum. This algebra is implemented through Jackson derivatives in a Schrödinger-like equation resulting from…
Scattering of kinks in scalar-field models with higher-order self-interactions
Aliakbar Moradi Marjaneh, Fabiano C. Simas, D. Bazeia
Higher-order scalar field models in two dimensions, including the model, have been researched. It has been shown that for some special cases of the minima positions of the po…
Effect of a critical magnetic field on the control of scalar neutral boson pair production in the context of Lorentz-symmetry violation
Andrés G. Jirón, Angel E. Obispo, J. Daniel Espinoza Loayza +2
This study investigates the production of neutral scalar boson pairs in static electromagnetic fields resulting from Lorentz-symmetry violation (LSV), with a focus on the parity-ev…
Magnetized AdS/BCFT Correspondence in Horndeski Gravity
Fabiano F. Santos, Moisés Bravo-Gaete, Manoel M. Ferreira +1
This work examines the thermodynamics and hydrodynamics behaviors of a five-dimensional black hole under the influence of an external magnetic field. The solution is the gravity du…
Nonminimal planar electrodynamics modified by higher-derivative terms
Letícia Lisboa-Santos, João A. A. S. Reis, Marco Schreck +1
We consider a (2+1)-dimensional modified electrodynamics endowed with terms that are either Lorentz-invariant or Lorentz-violating and involve an ever increasing number of derivati…
Kink scattering in the presence of geometric constrictions
João G. F. Campos, Fabiano C. Simas, D. Bazeia
We investigate kink-antikink collisions in a model characterized by two scalar fields in the presence of geometric constrictions. The model includes an auxiliary function that modi…
Maxwell-scalar system and scalar field with impurity: novel approach to find nontrivial solutions
I. Andrade, D. Bazeia, M. A. Marques +1
In this work, we investigate a Maxwell-scalar model that couples the scalar and gauge fields through the electric permittivity and another model, in which the scalar field lives in…
de Sitter versus anti-de Sitter in Horndeski-like gravity
Fabiano F. Santos, Behnam Pourhassan, Emmanuel N. Saridakis
We present general solutions of Horndeski-like gravity that can interpolate between the de Sitter and anti-de Sitter regimes. In particular, we develop the first-order formalism wi…
Thick branes in Horndeski gravity
Fabiano F. Santos, F. A. Brito
We investigate thick brane solutions in the Horndeski gravity. In this setup, we found analytical solutions, applying the first-order formalism to two scalar fields where the first…