Search Results - "Dutra, A. de Souza"

Extension of PT-symmetric quantum mechanics to the Dirac theory with position-dependent mass by Jia, Chun-Sheng, de Souza Dutra, A.

“…We present a new method to construct the exactly solvable PT-symmetric potentials within the framework of the position-dependent effective mass Dirac equation…”
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A General Method for Transforming Nonphysical Configurations in BPS States by Correa, R. A. C., Winter, O. C., Dutra, A. de Souza, Santos, J. R. L.

“…In this work, we apply the so-called BPS method in order to obtain topological defects for a complex scalar field Lagrangian introduced by Trullinger and…”
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Coupled Scalar Fields Oscillons and Breathers in Some Lorentz Violating Scenarios by Correa, R. A. C., Dutra, A. de Souza

“…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…”
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Entropic information for travelling solitons in Lorentz and CPT breaking systems by Correa, R.A.C., da Rocha, Roldão, de Souza Dutra, A.

“…In this work we group four research topics apparently disconnected, namely solitons, Lorentz symmetry breaking, supersymmetry, and entropy. Following a recent…”
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On the Study of Oscillons in Scalar Field Theories: A New Approach by Correa, R. A. C., Dutra, A. de Souza

“…We study configurations in one-dimensional scalar field theory, which are time-dependent, localized in space, and extremely long-lived, called oscillons. How…”
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Information content in F ( R ) brane models with nonconstant curvature by Correa, R. A. C., Moraes, P. H. R. S., Dutra, A. de Souza, da Rocha, Roldão

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Cosmological scenarios from multiquintessence by Correa, R. A. C., Moraes, P. H. R. S., de Souza Dutra, A., Santos, J. R. L., de Paula, W.

“…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…”
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Orbit based procedure for doublets of scalar fields and the emergence of triple kinks and other defects by de Brito, G.P., de Souza Dutra, A.

“…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,…”
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Time-dependent non-Hermitian Hamiltonians with real energies by Dutra, A. de Souza, Hott, M. B, Santos, V. G. C. S. dos

“…In this work we intend to study a class of time-dependent quantum systems with non-Hermitian Hamiltonians, particularly those whose Hermitian counterparts are…”
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Multikink solutions and deformed defects by de Brito, G.P., de Souza Dutra, A.

“…In this work we consider an application of the deformation procedure that enables us to construct, systematically, scalar field models supporting multikinks…”
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Continuously deformable topological structure by de Souza Dutra, A.

“…Some time ago, Bazeia and collaborators [D. Bazeia, J. Menezes, R. Menezes, Phys. Rev. Lett. 91 (2003) 241601], introduced a model consisting of a…”
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Information-entropic measure of energy-degenerate kinks in two-field models by Correa, R.A.C., de Souza Dutra, A., Gleiser, M.

“…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…”
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Wigner distribution for a class of isospectral position-dependent mass systems by de Souza Dutra, A, de Oliveira, J A

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Fluctuating solutions for the evolution of domain walls by de Souza Dutra, A., Correa, R.A.C.

“…A class of oscillating Lorentz-covariant configurations for the evolution of the domain walls in diverse dimensions are analytically obtained. It is shown that…”
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Fermions bounded by kinks of false vacuum models by de Souza Dutra, A., Correa, R.A.C.

“…In this work we address the question of existence of fermion bound-states and zero modes in the background of kinks of models presenting a structure with a…”
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Mapping for BPS Solitons of Scalar Field Potentials in 1+1 Dimensions and Family of Solutions by Amaro de Faria Jr, A. C., de Souza Dutra, A., Dresseno, J. E., Lourenço, R. E.

“…We analyze a method for solving a second-order nonlinear differential equation in 1 + 1 dimensions, applying it to some nonlinear systems. A particular…”
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Quantum propagator for some classes of three-dimensional three-body systems by de Souza Dutra, A.

“…In this work we solve exactly a class of three-body propagators for the most general quadratic interactions in the coordinates, for arbitrary masses and…”
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Asymmetrical Bloch branes and the hierarchy problem by de Souza Dutra, A., de Brito, G. P., Hoff da Silva, J. M.

“…We investigate a two scalar field split braneworld model which leads to a possible approach to the hierarchy problem within the thick brane scenario. The model…”
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Dirac equation exact solutions for generalized asymmetrical Hartmann potentials by de Souza Dutra, A., Hott, M.

“…In this work we solve the Dirac equation by constructing the exact bound state solutions for a mixing of vector and scalar generalized Hartmann potentials…”
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Friedmann–Lemaître–Robertson–Walker braneworlds by da Silva, P. Michel L.T., de Souza Dutra, A., Hoff da Silva, J.M.

“…We study the cosmological evolution with nonsingular branes generated by a bulk scalar field coupled to gravity. The specific setup investigated leads to…”
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