227 citations
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61 papers
Scattering, bound states, and resonances in the one-dimensional Dirac equation via supersymmetric quantum mechanics
Camila C. Soares, Luis B. Castro, Antonio S. de Castro
We develop a unified treatment of scattering and discrete spectra for the one-dimensional Dirac equation with scalar and vector interactions. Under the spin-symmetry condition, the…
Light propagation and quasinormal modes of a topologically charged Schwarzschild-Klinkhamer wormhole
C. F. S. Pereira, H. Belich, A. R. Soares +3
In this work, we present a theoretical analysis of null geodesics, critical photon orbits, and shadow formation associated with a wormhole generated by a geometric defect. The prop…
Light deflection and gravitational lensing effects inspired by loop quantum gravity
A. R. Soares, C. F. S. Pereira, R. L. L. Vitória +2
In the present work, we theoretically investigate light deflection in the weak and strong field regimes for two regular spacetimes with corrections from loop quantum gravity. We tr…
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 …
Topologically Charged Holonomy corrected Schwarzschild black hole lensing
A. R. Soares, R. L. L. Vitória, C. F. S. Pereira
In this paper, we theoretically investigate the deflection of light produced by a topologically charged Holonomy corrected Schwarzschild black hole. The study is carried out both i…
Universal energy and magnetisation distributions in the Blume-Capel and Baxter-Wu models
A. R. S. Macedo, J. A. Plascak, A. Vasilopoulos +3
We analyse the probability distribution functions of the energy and magnetisation of the two-dimensional Blume-Capel and Baxter-Wu models with spin values in…