613 citations · 4k across the 106 of their papers we have counts for
33 papers · 1 filter
Nonsingular black holes from conformal symmetries
Mariano Cadoni, Andrea Pierfrancesco Sanna
We derive the form of the metric for static, nonsingular black holes with a de Sitter core, representing a deformation of the Schwarzschild solution, by assuming that the gravitati…
Are nonsingular black holes with super-Planckian hair ruled out by S2 star data?
M. Cadoni, M. De Laurentis, I. De Martino +3
We propose a novel nonsingular black-hole spacetime representing a strong deformation of the Schwarzschild solution with mass by an additional hair , which may be hierarc…
Semiclassical spacetimes at super-Planckian scales from delocalized sources
Ali Akil, Mariano Cadoni, Leonardo Modesto +2
We derive the gravitational field and the spacetime metric generated by sources in quantum superposition of different locations. We start by working in a Newtonian approximation, i…
Atmospheric Newtonian noise modeling for third-generation gravitational wave detectors
Davide Brundu, Mariano Cadoni, Mauro Oi +2
The sensitivity and the frequency bandwidth of third-generation gravitational-wave (GW) detectors are such that the Newtonian noise (NN) signals produced by atmospheric turbulence…
Effective models of non-singular quantum black holes
Mariano Cadoni, Mauro Oi, Andrea Pierfrancesco Sanna
We investigate how the resolution of the singularity problem for the Schwarzschild BH could be related to the presence of quantum gravity effects at horizon scales. Motivated by th…
Quasi-normal modes and microscopic description of 2D black holes
Mariano Cadoni, Mauro Oi, Andrea Pierfrancesco Sanna
We investigate the possibility of using quasi-normal modes (QNMs) to probe the microscopic structure of two-dimensional (2D) anti-de Sitter (AdS) dilatonic black holes. We firs…
Quasi-normal modes and Microscopic Structure of the Schwarzschild Black Hole
Mariano Cadoni, Mauro Oi, Andrea P. Sanna
Maggiore observed that, in the high-damping regime, the quasi-normal modes spectrum for the Schwarzschild black hole resembles that of a quantum harmonic oscillator. Motivated by t…
Unified description of galactic dynamics and the cosmological constant
Mariano Cadoni, Andrea P. Sanna
We explore the phenomenology of a two-fluid cosmological model, where the field equations of general relativity (GR) are sourced by baryonic and cold dark matter. We find that the…
Emergence of a Cosmological Constant in Anisotropic Fluid Cosmology
Mariano Cadoni, Andrea P. Sanna
We investigate anisotropic fluid cosmology in a situation where the spacetime metric back-reacts in a local, time-dependent way to the presence of inhomogeneities. We derive exact…
Long-Range Quantum Gravity
M. Cadoni, M. Tuveri, A. P. Sanna
It is a tantalising possibility that quantum gravity (QG) states remaining coherent at astrophysical, galactic and cosmological scales could exist and that they could play a crucia…
Anisotropic Fluid Cosmology: an Alternative to Dark Matter?
Mariano Cadoni, Andrea P. Sanna, Matteo Tuveri
We use anisotropic fluid cosmology to describe the present, dark energy-dominated, universe. Similarly to what has been proposed for galactic dynamics, the anisotropic fluid gives…
Galactic dynamics and long-range quantum gravity
Matteo Tuveri, Mariano Cadoni
We explore in a systematic way the possibility that long-range quantum gravity effects could play a role at galactic scales and could be responsible for the phenomenology commonly…
A new perspective on galactic dynamics
Matteo Tuveri, Mariano Cadoni
We derive the radial acceleration of stars in galaxies by using basic features of thermodynamics, statistical mechanics and general relativity. We assume that the "dark" component…
Sine-Gordon solitonic scalar stars and black holes
Edgardo Franzin, Mariano Cadoni, Matteo Tuveri
We study exact, analytic, static, spherically symmetric, four-dimensional solutions of minimally coupled Einstein-scalar gravity, sourced by a scalar field whose profile has the fo…
Emergence of a Dark Force in Corpuscular Gravity
Mariano Cadoni, Roberto Casadio, Andrea Giusti +1
We investigate the emergent laws of gravity when Dark Energy and the de Sitter space-time are modelled as a critical Bose-Einstein condensate of a large number of soft gravitons $N…
Effective Fluid Description of the Dark Universe
Mariano Cadoni, Roberto Casadio, Andrea Giusti +2
We propose an effective anisotropic fluid description for a generic infrared-modified theory of gravity. In our framework, the additional component of the acceleration, commonly at…
Brane solutions sourced by a scalar with vanishing potential and classification of scalar branes
M. Cadoni, E. Franzin, M. Serra
We derive exact brane solutions of minimally coupled Einstein-Maxwell-scalar gravity in d+2 dimensions with a vanishing scalar potential. The solutions are conformal to the Lifshit…
Black holes sourced by a massless scalar
Mariano Cadoni, Edgardo Franzin
We construct asymptotically flat black hole solutions of Einstein-scalar gravity sourced by a nontrivial scalar field with 1/r asymptotic behaviour. Near the singularity the black…
Inflation as de Sitter instability
Mariano Cadoni, Edgardo Franzin, Salvatore Mignemi
We consider cosmological inflation generated by a scalar field slowly rolling off from a de Sitter maximum of its potential. The models belong to the class of hilltop models and re…
Asymptotically flat black holes sourced by a massless scalar field
Mariano Cadoni, Edgardo Franzin
We derive exact, asymptotically flat black hole solutions of Einstein-scalar gravity sourced by a non trivial scalar field with asymptotic behaviour. They are determined usin…
Black hole solutions of gravity theories with nonminimal coupling between matter and curvature
Orfeu Bertolami, Mariano Cadoni, Andrea Porru
We study black hole solutions in an extension of General Relativity (GR) with an explicit non-minimal coupling between matter and curvature. General black hole solutions satisfying…
Exact solutions with AdS asymptotics of Einstein and Einstein-Maxwell gravity minimally coupled to a scalar field
Mariano Cadoni, Salvatore Mignemi, Matteo Serra
We propose a general method for solving exactly the static field equations of Einstein and Einstein-Maxwell gravity minimally coupled to a scalar field. Our method starts from an a…
Ergoregion instability of black hole mimickers
Paolo Pani, Vitor Cardoso, Mariano Cadoni +1
Ultra-compact, horizonless objects such as gravastars, boson stars, wormholes and superspinars can mimick most of the properties of black holes. Here we show that these "black hole…
General models of Einstein gravity with a non-Newtonian weak-field limit
M. Cadoni, M. Casula
We investigate Einstein theories of gravity, coupled to a scalar field \vphi and point-like matter, which are characterized by a scalar field-dependent matter coupling function e^{…