60 citations · 142 across the 11 of their papers we have counts for
12 papers · 1 filter
Phenomenology of dynamical trapped regions
Julio Arrechea, Stefano Liberati, Hooman Neshat +1
Regular black holes (RBHs) and horizonless black hole mimickers (BHMs) are often studied as stationary alternatives to classical black holes, although their interiors may be unstab…
Charging up regular black holes
Raúl Carballo-Rubio, Chiara Coviello, Vania Vellucci
We present a general construction of charged regular black holes as solutions of a generalization of the Einstein--Maxwell field equations in spherical symmetry in which the Einste…
From de Sitter to anti-de Sitter singularity regularization: Theory and phenomenology
Julio Arrechea, Stefano Liberati, Hooman Neshat +1
Recent investigations of vacuum polarization in extremely compact stars suggest that, in such regimes, the effective matter content of spacetime may acquire a vacuum-energy equatio…
Physical and Theoretical Challenges to Integrable Singularities
Julio Arrechea, Stefano Liberati, Hooman Neshat +1
Black hole spacetimes that exhibit integrable singularities have gained considerable interest as alternatives to both regular and singular black holes. Unlike most known regular bl…
Tidal response of regular black holes
Chiara Coviello, Luis Lehner, Vania Vellucci
In this work, we investigate the tidal deformability of regular black holes (RBHs). Employing different phenomenological models, we analyze their response to both test fields and g…
Towards a Non-singular Paradigm of Black Hole Physics
Raúl Carballo-Rubio, Francesco Di Filippo, Stefano Liberati +18
The study of regular black holes and black hole mimickers as alternatives to standard black holes has recently gained significant attention, driven both by the need to extend gener…
Whispers from the quantum core: the ringdown of semiclassical stars
Julio Arrechea, Stefano Liberati, Vania Vellucci
This investigation delves into the ringdown signals produced by semiclassical stars, which are ultra-compact, regular solutions of the Einstein equations incorporating stress-energ…
Geodesically complete universes
Raúl Carballo-Rubio, Stefano Liberati, Vania Vellucci
Singularity theorems demonstrate the inevitable breakdown of the concept of continuous, classical spacetime under highly general conditions. Quantum gravity is expected to interven…
Black hole spectroscopy beyond Kerr: agnostic and theory-based tests with next-generation interferometers
Andrea Maselli, Sophia Yi, Lorenzo Pierini +4
Black hole spectroscopy is a clean and powerful tool to test gravity in the strong-field regime and to probe the nature of compact objects. Next-generation ground-based detectors,…
From regular black holes to horizonless objects: quasi-normal modes, instabilities and spectroscopy
Edgardo Franzin, Stefano Liberati, Vania Vellucci
We study gravitational and test-field perturbations for the two possible families of spherically symmetric black-hole mimickers that smoothly interpolate between regular black hole…
Stable Rotating Regular Black Holes
Edgardo Franzin, Stefano Liberati, Jacopo Mazza +1
We present a rotating regular black hole whose inner horizon has zero surface gravity for any value of the spin parameter, and is therefore stable against mass inflation. Our metri…
Echoes from backreacting exotic compact objects
Vania Vellucci, Edgardo Franzin, Stefano Liberati
The possible detection of echoes in late gravitational-wave signals is the most promising way to test horizonless alternatives to general relativistic black holes, and probe the ph…