99 citations · 617 across the 23 of their papers we have counts for
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Gravitational decoupling and regular hairy black holes: Geodesic stability, quasinormal modes, and thermodynamic properties
R. C. de Paiva, K. S. Alves, R. T. Cavalcanti +1
The stability of geodesic orbits around a regular hairy black hole, in the gravitational decoupling setup, is investigated by employing Lyapunov exponents, which quantify the diver…
Quantum Hairy Black Hole Formation and Horizon Quantum Mechanics
R. T. Cavalcanti, J. M. Hoff da Silva
After introducing the gravitational decoupling method and the hairy black hole recently derived from it, we investigate the formation of quantum hairy black holes by applying the h…
Near horizon thermodynamics of hairy black holes from gravitational decoupling
Rogerio T. Cavalcanti, Kelvin dos S. Alves, Julio M. Hoff da Silva
The horizon structure and thermodynamics of hairy spherically symmetric black holes generated by the gravitational decoupling method are carefully investigated. The temperature and…
Echoes of the gravitational decoupling: scalar perturbations and quasinormal modes of hairy black holes
R. T. Cavalcanti, R. C. de Paiva, R. da Rocha
The behavior of hairy black hole solutions, obtained by the gravitational decoupling (GD) method, is investigated under scalar perturbations. The quasinormal mode frequencies of su…
Aspects of Black Hole Physics Beyond General Relativity: extra dimensions, horizon wave function and applications
Rogerio Teixeira Cavalcanti
This work is devoted to investigate some consequences of black holes physics beyond the domain of general relativity, mainly in effective extra dimensional models. The investigatio…
Exotic Spinorial Structure and Black Holes in General Relativity
Dino Beghetto, Rogerio T. Cavalcanti, Julio M. Hoff da Silva
We explore different (and complementary) views of spinors and their exotic counterparts, linking the very existence of the later to the presence of black holes. Moreover, we invest…
Strong Deflection Limit Lensing Effects in the Minimal Geometric Deformation and Casadio-Fabbri-Mazzacurati Solutions
R. T. Cavalcanti, A. Goncalves da Silva, Roldao da Rocha
In this paper we apply the strong deflection limit approach to investigate the gravitational lensing phenomena beyond general relativity. This is accomplished by considering the le…
Horizon of quantum black holes in various dimensions
Roberto Casadio, Rogerio T. Cavalcanti, Andrea Giugno +1
We adapt the horizon wave-function formalism to describe massive static spherically symmetric sources in a general -dimensional space-time, for and including the …
Dark Spinors Hawking Radiation in String Theory Black Holes
R. T. Cavalcanti, Roldao da Rocha
The Hawking radiation spectrum of Kerr-Sen axion-dilaton black holes is derived, in the context of dark spinors tunnelling across the horizon. Since a black hole has a well defined…
Spherically Symmetric Thick Branes Cosmological Evolution
Alex E. Bernardini, R. T. Cavalcanti, Roldao da Rocha
Spherically symmetric time-dependent solutions for the 5D system of a scalar field canonically coupled to gravity are obtained and identified as an extension of recent results obta…
Flag-Dipole Spinor Fields in ESK Gravities
Roldao da Rocha, Luca Fabbri, J. M. Hoff da Silva +2
We consider the Riemann-Cartan geometry as a basis for the Einstein-Sciama-Kibble theory coupled to spinor fields: we focus on and conformal gravities, regarding the flag-di…