53 citations · 369 across the 22 of their papers we have counts for
22 papers
Absorption spectrum and greybody factors of charged black holes in loop quantum gravity
Marco A. A. de Paula, Valdir B. Bezerra, Luiz C. S. Leite
In the last few decades, singularity-free black holes (BHs) obtained in the framework of Loop Quantum Gravity (LQG) have gained attention in the literature. These compact objects r…
Sufficient conditions for unbounded superradiance in black hole spacetimes sourced by nonlinear electrodynamics
Marco A. A. de Paula, Luiz C. S. Leite, Luís C. B. Crispino
Recently, it has been reported that black holes (BHs) sourced by nonlinear electrodynamics (NED) can trigger unbounded superradiance, i. e., the total absorption cross section -- t…
Absorption and (unbounded) superradiance in a static regular black hole spacetime
Marco A. A. de Paula, Luiz C. S. Leite, Sam R. Dolan +1
Regular black holes (RBHs) -- geometries free from curvature singularities -- arise naturally in theories of non linear electrodynamics. Here we study the absorption, and superradi…
Superradiant instability of a charged regular black hole
Sam R. Dolan, Marco A. A. de Paula, Luiz C. S. Leite +1
We show that a charged, massive scalar field in the vicinity of an electrically-charged Ayón-Beato-García (ABG) regular black hole has a spectrum of quasibound states that (in a ce…
Geodesic analysis, absorption and scattering in the static Hayward spacetime
Marco A. A. de Paula, Luiz C. S. Leite, Luís C. B. Crispino
We investigate the propagation of massless particles and scalar fields in the background of Hayward regular black holes. We compute the absorption and scattering cross sections and…
Scattering by stringy black holes
Sérgio V. M. C. B. Xavier, Carolina L. Benone, Luiz C. S. Leite +1
We study the scattering of axially incident massless scalar waves by a charged and rotating black hole solution from heterotic string theory called the Kerr-Sen black hole. We comp…