From the 1 of 16 linked papers with an AI index.
47 citations · 47 across the 3 of their papers we have counts for
16 papers
A Bound on the Dynamical Love Number
Alex Kehagias, Antonio Riotto
The paper derives a theoretical bound on the frequency dependence of the tidal deformability (Love number) of compact objects such as neutron stars and black holes, using the Schwa…
Radial Mirror Scattering and the QNM Convergence Region
Alex Kehagias, Antonio Riotto
We revisit the convergence region of the quasinormal modes expansion of Schwarzschild retarded Green functions from a radial scattering viewpoint. The tortoise coordinate admits a…
Curbing PBHs with PTAs
A. J. Iovino, G. Perna, A. Riotto +1
Sizeable primordial curvature perturbations needed to seed a population of primordial black holes (PBHs) will be accompanied by a scalar-induced gravitational wave signal that can…
Black Hole Photon Rings Saturate the Quantum Chaos Bound
D. Giataganas, G. F. Giudice, A. Kehagias +2
We study the quantum chaos bound in the photon ring region surrounding black holes. By evaluating the Lyapunov exponent associated with unstable null geodesics in a broad class of…
GW231123: A Possible Primordial Black Hole Origin
Valerio De Luca, Gabriele Franciolini, Antonio Riotto
GW231123, the heaviest binary black hole merger detected by the LIGO-Virgo-KAGRA Collaboration to date, lies in the pair-instability mass gap and exhibits unusually high component…
Towards a complete theory of thermal leptogenesis in the SM and MSSM
G. F. Giudice, A. Notari, M. Raidal +2
We perform a thorough study of thermal leptogenesis adding finite temperature effects, RGE corrections, scatterings involving gauge bosons and by properly avoiding overcounting on-…