5 papers
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…
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…