192 citations · 588 across the 10 of their papers we have counts for
11 papers
On the regularity of deformed extremal horizons
Francesco Di Filippo, Shinji Mukohyama, José M. M. Senovilla
It has recently been argued that extremal black holes can act as amplifiers of new physics, due to horizon instabilities that enhance the effects of ultraviolet corrections. In thi…
Dust collapse and horizon formation in Quadratic Gravity
Luca Buoninfante, Francesco Di Filippo, Ivan Kolář +1
Quadratic Gravity supplements the Einstein-Hilbert action by terms quadratic in the spacetime curvature. This leads to a rich phase space of static, compact gravitating objects inc…
A connection between regular black holes and horizonless ultracompact stars
Raúl Carballo-Rubio, Francesco Di Filippo, Stefano Liberati +1
We illustrate that regular black holes and horizonless stars, typically considered as quite distinct families of black hole mimickers, are intimately intertwined. We show that any…
On the inner horizon instability of non-singular black holes
Francesco Di Filippo, Raúl Carballo-Rubio, Stefano Liberati +2
Regular black holes represent a conservative model in which the classical singularity is replaced by a non-singular core without necessarily modifying the spacetime outside the tra…
On the assumptions leading to the information loss paradox
Luca Buoninfante, Francesco Di Filippo, Shinji Mukohyama
The information loss paradox is usually stated as an incompatibility between general relativity and quantum mechanics. However, the assumptions leading to the problem are often ove…
Non-uniqueness of massless transverse-traceless graviton
Katsuki Aoki, Francesco Di Filippo, Shinji Mukohyama
We study a theory of minimally modified gravity called cuscuton/VCDM that propagates only two gravitational degrees of freedom. Despite being apparently different from general rela…
Inner horizon instability and the unstable cores of regular black holes
Raúl Carballo-Rubio, Francesco Di Filippo, Stefano Liberati +2
Regular black holes with nonsingular cores have been considered in several approaches to quantum gravity, and as agnostic frameworks to address the singularity problem and Hawking'…
Causal hierarchy in modified gravity
Raul Carballo-Rubio, Francesco Di Filippo, Stefano Liberati +1
We investigate the causal hierarchy in various modified theories of gravity. In general relativity the standard causal hierarchy, (key elements of which are chronology, causality,…
Geodesically complete black holes
Raúl Carballo-Rubio, Francesco Di Filippo, Stefano Liberati +1
The 1965 Penrose singularity theorem demonstrates the utterly inevitable and unavoidable formation of spacetime singularities under physically reasonable assumptions, and it remain…
Opening the Pandora's box at the core of black holes
Raúl Carballo-Rubio, Francesco Di Filippo, Stefano Liberati +1
Unless the reality of spacetime singularities is assumed, astrophysical black holes cannot be identical to their mathematical counterparts obtained as solutions of the Einstein fie…
Phenomenological aspects of black holes beyond general relativity
Raúl Carballo-Rubio, Francesco Di Filippo, Stefano Liberati +1
While singularities are inevitable in the classical theory of general relativity, it is commonly believed that they will not be present when quantum gravity effects are taken into…