24 citations · 82 across the 12 of their papers we have counts for
12 papers
Fuzzy-novae
Francesco Fazzini, Waleed Sherif
We propose a novel phenomenological model of quantum gravitational collapse inspired by loop quantum gravity that ensures a completely regular spacetime evolution. By incorporating…
Formation of shell-crossing singularities in effective gravitational collapse models with bounded and unbounded polymerizations
Francesco Fazzini, Kristina Giesel, Eric Rullit
We extend the investigation into the formation of shell-crossing singularites (SCS) in effective polymerized LTB models to the LQG-inspired asymmetric bounce model, as well as to e…
Quantum gravitational stellar evolution beyond shell-crossing singularities
Michał Bobula, Francesco Fazzini
Models of effective stellar collapse inspired by loop quantum gravity predict a bounce when the stellar energy density reaches the Planck scale, typically followed by the formation…
Effective LQG-inspired dynamics of a thin shell and the fate of a collapsing star
Francesco Fazzini
Effective models inspired by loop quantum gravity typically resolve the central singularity by replacing it with a bounce of the matter density in the Planckian regime. In the spec…
On weak solutions in Einstein theory and beyond
Francesco Fazzini, Hassan Mehmood
In spherical symmetry, gravitational collapse of dust may give rise to the so-called shell-crossing singularities, beyond which spacetime can be extended using weak solutions to th…
Non-uniqueness of the shockwave dynamics in effective loop quantum gravity
Francesco Fazzini
Spherically symmetric effective dust collapse inspired by effective loop quantum cosmology predicts a bounce when the stellar energy density becomes planckian, which in turn inevit…
Gentle spaghettification in effective LQG dust collapse
Francesco Fazzini
Effective dust collapse inspired by loop quantum gravity predicts two main features for general realistic initial profiles: a quantum gravitational bounce of the stellar core, when…
Stellar collapse with pressure in effective loop quantum gravity
Luca Cafaro, Lorenzo Cipriani, Francesco Fazzini +1
We explore semiclassical stellar collapse scenarios with pressure within the framework of effective loop quantum gravity. The objective of this work is to generalize existent model…
Effective Kerr geometry from loop quantum gravity
Francesco Fazzini
We derive an effective Kerr metric from an effective Schwarzschild metric inspired by loop quantum gravity through the Newman-Janis algorithm. The resulting spacetime is free from…
Gravitational collapse in effective loop quantum gravity: beyond marginally bound configurations
Lorenzo Cipriani, Francesco Fazzini, Edward Wilson-Ewing
We study gravitational collapse in effective loop quantum gravity, focusing on non-marginally bound configurations in Lemaître-Tolman-Bondi spacetimes. In the homogeneous limit we…
Shell-crossings and shock formation during gravitational collapse in effective loop quantum gravity
Francesco Fazzini, Viqar Husain, Edward Wilson-Ewing
Effective models of gravitational collapse in loop quantum gravity for the Lemaître-Tolman-Bondi spacetime predict that collapsing matter reaches a maximum finite density, bounces,…
Painlevé-Gullstrand coordinates discontinuity in the quantum Oppenheimer-Snyder model
Francesco Fazzini, Carlo Rovelli, Farshid Soltani
A metric that describes a collapsing star and the surrounding black hole geometry accounting for quantum gravity effects has been derived independently by different research groups…