246 citations · 558 across the 35 of their papers we have counts for
35 papers
Modeling Dark Matter Halos with Nonlinear Field Theories
R. A. C. Correa, P. H. R. S. Moraes, A. de Souza Dutra +3
In the present work, we adopt a nonlinear scalar field theory coupled to the gravity sector to model galactic dark matter. We found analytical solutions for the scalar field couple…
Lorentz Violation and Topologically Trapped Charge Carriers in 2D Materials
R. A. C. Correa, W. de Paula, A. de Souza Dutra +1
The full spectrum of two-dimensional fermion states in a scalar soliton trap with a Lorentz breaking background is investigated in the context of the novel 2D materials, where the…
Cosmological scenarios from multiquintessence
R. A. C. Correa, P. H. R. S. Moraes, A. de Souza Dutra +2
In this work we derive and analyse cosmological scenarios coming from multi-component scalar field models. We consider a direct sum of a sine-Gordon with a Z2 model, and also a com…
Refinements of the Weyl pure geometrical thick branes from information-entropic measure
R. A. C. Correa, D. M. Dantas, P. H. R. S. Moraes +2
This letter aims to analyse the so-called configurational entropy in the Weyl pure geometrical thick brane model. The Weyl structure plays a prominent role in the thickness of this…
Configurational entropy as a bounding of Gauss-Bonnet braneworld models
R. A. C. Correa, P. H. R. S. Moraes, A. de Souza Dutra +2
Configurational entropy has been revealed as a reliable method for constraining some parameters of a given model [Phys. Rev. D \textbf{92} (2015) 126005, Eur. Phys. J. C \textbf{76…
Friedmann-Robertson-Walker Braneworlds
Paulo Michel L. T. da Silva, Alvaro de Souza Dutra, Julio Marny Hoff da Silva
We study the cosmological evolution with nonsingular branes generated by a bulk scalar field coupled to gravity. The specific setup investigated leads to branes with a time-depende…
On the Hamilton-Jacobi method in classical and quantum nonconservative systems
A. de Souza Dutra, R. A. C. Correa, P. H. R. S. Moraes
In this work we show how to complete some Hamilton-Jacobi solutions of linear, nonconservative classical oscillatory systems which appeared in the literature and we extend these co…
Information content in brane models with non-constant curvature
R. A. C. Correa, P. H. R. S. Moraes, A. de Souza Dutra +1
In this work we investigate the entropic information-measure in the context of braneworlds with non-constant curvature. The braneworld entropic information is studied for gravity m…
Smooth braneworld models possibility in modified gravities
G. P. de Brito, J. M. Hoff da Silva, P. Michel L. T. da Silva +1
It is shown that the consideration of the braneworld consistency conditions within the framework of bulk modified gravities allows for the existence of thick branes in the five- di…
A complete set of eigenstates for position-dependent massive particles in a Morse-like scenario
R. A. C. Correa, A. de Souza Dutra, J. A. de Oliveira +1
In this work we analyze a system consisting in two-dimensional position-dependent massive particles in the presence of a Morse-like potential in two spatial dimensions. We obtain t…
A method for obtaining thick branes models
A. de Souza Dutra, G. P. de Brito, J. M. Hoff da Silva
In this work we present a new class of braneworld models, where the superpotential function may be decomposed in a very specific form, but still embracing, which allows considerabl…
On the study of oscillons in scalar field theories: A new approach
R. A. C. Correa, A. de Souza Dutra
In this work we study configurations in one-dimensional scalar field theory, which are time-dependent, localized in space and extremely long-lived called oscillons. It is investiga…
Information-Entropic Measure of Energy-Degenerate Kinks in Two-Field Models
R. A. C. Correa, A. de Souza Dutra, M. Gleiser
We investigate the existence and properties of kink-like solitons in a class of models with two interacting scalar fields. In particular, we focus on models that display both doubl…
Multikink solutions and deformed defects
G. P. de Brito, A. de Souza Dutra
At the present work we consider an application of the deformation procedure that enable us to construct, systematically, scalar field models supporting multikinks. We introduce a n…
Orbit based procedure for doublets of scalar fields and the emergence of triple kinks and other defects
G. P. de Brito, A. de Souza Dutra
In this work we offer an approach to enlarge the number of exactly solvable models with two real scalar fields in (1+1)D. We build some new two-field models, and obtain their exact…
Analytical Multi-kinks in smooth potentials
G. P. de Brito, R. A. C. Correa, A. de Souza Dutra
In this work we present an approach which can be systematically used to construct nonlinear systems possessing analytical multi-kink profile configurations. In contrast with previo…
Asymmetrical bloch branes and the hierarchy problem
A. de Souza Dutra, G. P. de Brito, J. M. Hoff da Silva
We investigate a two scalar fields split braneworld model which leads to a possible approach to the hierarchy problem within the thick brane scenario. The model exhibits a resultin…
Localized exact solutions of symmetric nonlinear Schrödinger equation with space and time modulated nonlinearities
L. E. Arroyo Meza, M. B. Hott, A. de Souza Dutra +1
Using canonical transformations we obtain localized (in space) exact solutions of the nonlinear Schrödinger equation (NLSE) with space and time modulated nonlinearity and in the pr…
Coupled scalar fields Oscillons and Breathers in some Lorentz Violating Scenarios
A. de Souza Dutra, R. A. C. Correa
In this work we discuss the impact of the breaking of the Lorentz symmetry on the usual oscillons, the so-called flat-top oscillons, and the breathers. Our analysis is performed by…
Wide Localized Solitons in Systems with Time and Space-Modulated Nonlinearities
L. E. Arroyo-Meza, A. de Souza Dutra, M. B. Hott
In this work we apply point canonical transformations to solve some classes of nonautonomous nonlinear Schrödinger equation namely, those which possess specific cubic and quintic -…
A mapping function approach applied to some classes of nonlinear equations
A. de Souza Dutra, M. Hott, Filipe F. Bellotti
In this work, we study some models of scalar fields in 1+1 dimensions with non-linear self-interactions. Here, we show how it is possible to extend the solutions recently reported…
Emerging 2D isospectral configurations for position-dependent mass quantum systems
A. de Souza Dutra, J. A. de Oliveira, R. A. C. Correa +1
In this work we construct a general class of exactly solvable non-relativistic bi-dimensional quantum systems with position-dependent masses (PDM). These systems are isospectral to…
Real spectra for non-Hermitian Dirac equation in 1+1 dimensions with a most general coupling
V. G. C. S. dos Santos, A. de Souza Dutra, M. B. Hott
The most general combination of couplings of fermions with external potentials in 1+1 dimensions, must include vector, scalar and pseudoscalar potentials. We consider such a mixing…
Generalizing the Soldering procedure
D. Dalmazi, A. de Souza Dutra, E. M. C. Abreu
We start this work by revisiting the problem of the soldering of two chiral Schwinger models of opposite chiralities. We verify that, in contrast with what one can conclude from th…