58 citations · 143 across the 10 of their papers we have counts for
10 papers
Phase spaces and symmetries of Vaidya superspace
Salvatore Ribisi, Francesco Sartini
We investigate the classical symmetries of the dynamics of the null-dust spherically symmetric Vaidya spacetime. Einstein's equations for this model can be obtained as equations of…
Regularized Black Holes from Doubled FLRW Cosmologies
Marc Geiller, Etera R. Livine, Francesco Sartini
Reduced general relativity for four-dimensional spherically-symmetric stationary space-times, more simply called the black hole mini-superspace, was shown in previous work to admit…
Hidden Symmetries in Gravity : Black holes and other minisuperspaces
Francesco Sartini
This thesis is dedicated to the study of symmetries in reduced models of gravity, with some frozen degrees of freedom. We focus on the minisuperspace reduction whith a finite numbe…
Dynamical symmetries of homogeneous minisuperspace models
Marc Geiller, Etera R. Livine, Francesco Sartini
We investigate the phase space symmetries and conserved charges of homogeneous gravitational minisuperspaces. These (0+1)-dimensional reductions of general relativity are defined b…
Group quantization of the black hole minisuperspace
Francesco Sartini
The emergence of nontrivial symmetries for black holes minisuperspaces has been recently pointed out. These Noether symmetries possess non-null charges and hence map physical solut…
BMS Mechanics and the Black Hole Interior
Marc Geiller, Etera R. Livine, Francesco Sartini
The spacetime in the interior of a black hole can be described by an homogeneous line element, for which the Einstein--Hilbert action reduces to a one-dimensional mechanical model.…
Hawking radiation by spherically-symmetric static black holes for all spins: II -- Numerical emission rates, analytical limits and new constraints
Alexandre Arbey, Jérémy Auffinger, Marc Geiller +2
In the companion paper [Phys. Rev. D 103 (2021) 10, [2101.02951]] we have derived the short-ranged potentials for the Teukolsky equations for massless spins in genera…
Hawking radiation by spherically-symmetric static black holes for all spins: I -- Teukolsky equations and potentials
Alexandre Arbey, Jérémy Auffinger, Marc Geiller +2
In the context of the dynamics and stability of black holes in modified theories of gravity, we derive the Teukolsky equations for massless fields of all spins in general spherical…
Quantum dynamics of the black hole interior in LQC
Francesco Sartini, Marc Geiller
It has been suggested that the homogeneous black hole interior spacetime, when quantized following the techniques of loop quantum cosmology, has a resolved singularity replaced by…
Symmetries of the Black Hole Interior and Singularity Regularization
Marc Geiller, Etera R. Livine, Francesco Sartini
We reveal an Poincaré algebra of conserved charges associated with the dynamics of the interior of black holes. The action of these Noether charges integrates…