From the 1 of 16 linked papers with an AI index.
16 papers
Parametrized beyond-Teukolsky framework in the time domain
Ciro De Simone, Sebastian H. Völkel, Kostas D. Kokkotas +1
The authors develop a time‑domain implementation of the parametrized beyond‑Teukolsky framework to study how modifications to General Relativity affect black‑hole perturbations, an…
Emergent Gravity from Topological Quantum Field Theory: Stochastic Gradient Flow Perspective away from the Quantum Gravity Problem
Andrea Addazi, Salvatore Capozziello, Jinglong Liu +3
We propose a scenario according to which the ultraviolet completion of General Relativity is realized through a stochastic gradient flow towards a topological BF theory. Specifical…
Confronting eikonal and post-Kerr methods with numerical evolution of scalar field perturbations in spacetimes beyond Kerr
Ciro De Simone, Sebastian H. Völkel, Kostas D. Kokkotas +2
The accurate computation of quasinormal modes from rotating black holes beyond general relativity is crucial for testing fundamental physics with gravitational waves. In this study…
Shadow signatures and energy accumulation in Lorentzian-Euclidean black holes
Emmanuele Battista, Salvatore Capozziello, Che-Yu Chen
The Lorentzian-Euclidean black hole has been recently introduced as a geodesically complete spacetime featuring a signature shift at the event horizon where causal geodesics are pr…
olographic aturalness and Pre-Geometric Gravity
Andrea Addazi, Salvatore Capozziello, Giuseppe Meluccio
The cosmological constant (CC, ) problem represents a remarkable discrepancy of about 120 orders of magnitude between the observed dark energy and its natural expectation from…
Analytical calculation of self-force effects on a scalar particle in an eccentric orbit around a Schwarzschild black hole
Salvatore Capozziello, Nicola Menadeo, Davide Usseglio
In this work, we analytically investigate the effects of the scalar self-force exerted by a massless scalar field on a particle in a slightly eccentric orbit around a Schwarzschild…