72 citations · 416 across the 16 of their papers we have counts for
16 papers
Bifurcation and chaos in one dimensional chains of small particles
Fabiano C. Simas, K. Z. Nobrega, D. Bazeia
This work deals with bifurcation and the chaotic behavior in one dimensional chains of small particles. We consider two distinct possibilities, one where the particles are modeled…
Asymmetry engendered by symmetric kink-antikink scattering in a degenerate two-field model
Fabiano C. Simas, K. Z. Nobrega, D. Bazeia +1
In this paper we analyze the scattering process in a two-field model in -dimensions, with the special property to have several topological solutions: i) one with higher rest…
Scattering of metastable lumps in a model with a false vacuum
Fred C. Lima, Fabiano C. Simas, K. Z. Nobrega +1
In this work we consider the scalar field model with a false vacuum proposed by A. T. Avelar, D. Bazeia, L. Losano and R. Menezes, Eur. Phys. J. C 55, 133-143 (2008). The model dep…
Solitary oscillations and multiple antikink-kink pairs in the double sine-Gordon model
Fabiano C. Simas, Fred C. Lima, K. Z. Nobrega +1
We study kink-antikink collisions in a particular case of the double sine-Gordon model depending on only one parameter . The scattering process of large kink-antikink shows the…
Oscillons in hyperbolic models
D. Bazeia, Adalto R. Gomes, K. Z. Nobrega +1
In this work we examine kink-antikink collisions in two distinct hyperbolic models. The models depend on a deformation parameter, which controls two main characteristics of the pot…
Kink scattering in hyperbolic models
D. Bazeia, Adalto R. Gomes, K. Z. Nobrega +1
In this work we study kink-antikink and antikink-kink collisions in hyperbolic models of fourth and sixth order. We compared the patterns of scattering with known results from poly…
Boundary scattering in the model
Fred C. Lima, Fabiano C. Simas, K. Z. Nobrega +1
We study the non-integrable model on the half-line. The model has two topological sectors. We chose solutions from just one topological sector to fix the initial conditions…
False vacuum decay in kink scattering
Adalto R. Gomes, F. C. Simas, K. Z. Nobrega +1
In this work we consider kink-antikink and antikink-kink collisions in a modified model with a false vacuum characterized by a dimensionless parameter . The usual mo…
Kink scattering in a hybrid model
D. Bazeia, Adalto R. Gomes, K. Z. Nobrega +1
In this work we consider a model where the potential has two topological sectors connecting three adjacent minima, as occurs with the model. In each topological sector, the p…
Degenerate vacua to vacuumless model and collisions
F. C. Simas, Adalto R. Gomes, K. Z. Nobrega
In this work we investigate a symmetric model of one scalar field in dimension. The model is characterized by a continuous transition from a potential with…
Suppression of two-bounce windows in kink-antikink collisions
F. C. Simas, Adalto R. Gomes, K. Z. Nobrega +1
We consider a class of topological defects in -dimensions with a deformed kink structure whose stability analysis leads to a Schrödinger-like equation with a zero-mode…
On the dynamics of Airy beams in nonlinear media with nonlinear losses
Carlos Ruiz-Jiménez, K. Z. Nóbrega, Miguel A. Porras
We investigate on the nonlinear dynamics of Airy beams in a regime where nonlinear losses due to multi-photon absorption are significant. We identify the nonlinear Airy beam (NAB)…
Kink-antikink collisions for twin models
A. R. Gomes, R. Menezes, K. Z. Nobrega +1
In this work we consider kink-antikink collisions for some classes of -dimensional nonlinear models. We are particularly interested to investigate in which aspect the presen…
On the Localized superluminal Solutions to the Maxwell Equations
Erasmo Recami, Michel Zamboni-Rached, Kleber Z. Nobrega +2
In the first part of this article the various experimental sectors of physics in which Superluminal motions seem to appear are briefly mentioned, after a sketchy theoretical introd…
Superluminal X-shaped beams propagating without distortion along a coaxial guide
M. Zamboni-Rached, K. Z. Nobrega, Erasmo Recami +1
In a previous paper [Phys. Rev. E64 (2001) 066603; e-print physics/0001039], we showed that localized Superluminal solutions to the Maxwell equations exist, which propagate down (n…
Superluminal Localized Solutions to the wave equation, in (vacuum or) dispersive media, for arbitrary frequencies and with adjustable bandwidth
M. Zamboni-Rached, K. Z. Nobrega, H. E. Hernandez-Figueroa +1
In this paper we set forth new exact analytical Superluminal localized solutions to the wave equation for arbitrary frequencies and adjustable bandwidth. The formulation presented…