23 citations · 36 across the 13 of their papers we have counts for
16 papers
Black holes with axion hair from cubic Riemann interactions
Roberto Casadio, Roldao da Rocha
An effective field theory (EFT) of gravity with a cubic Riemann invariant coupled to an axion-like field is investigated and shown to propagate no additional independent low-energy…
Coherent quantum geometry: de Sitter spacetime in different foliations
Tommaso Bambagiotti, Roberto Casadio, Andrea Giusti +1
In any theory of quantum gravity, an interesting question to address is to what extent known solutions of the Einstein field equations can be obtained as expectation values of metr…
Probing Cosmic Expansion and Early Universe with Einstein Telescope
Angelo Ricciardone, Mairi Sakellariadou, Archisman Ghosh +52
Over the next two decades, gravitational-wave (GW) observations are expected to evolve from a discovery-driven endeavour into a precision tool for astrophysics, cosmology, and fund…
Quantum dust cores of rotating black holes
Tommaso Bambagiotti, Roberto Casadio
Black holes are spacetimes that should describe the end state of the gravitational collapse of huge amounts of quantum matter. A quantum description of dust cores for black hole ge…
Gravitational radiation reaction around a static black hole surrounded by a Dehnen type dark matter halo
Amjad Ashoorioon, Roberto Casadio, Khadije Jafarzade +2
We consider the motion of a particle in the geometry of a Schwarzschild-like black hole embedded in a dark matter (DM) halo with Dehnen type density profile and calculate the orbit…
Quantum dust cores of black holes and their quasi-normal modes
Tommaso Bambagiotti, Luca Gallerani, Andrea Mentrelli +2
The quantum description of a gravitationally collapsed ball of dust proposed in Ref.~\cite{Casadio:2023ymt} is characterised by a linear effective Misner-Sharp-Hernandez mass funct…
Quantum gravitational corrections at third-order curvature, acoustic analog black holes and their quasinormal modes
R. Casadio, C. Noberto Souza, R. da Rocha
Quasinormal modes for bosonic (scalar, electromagnetic, and axial gravitational) and fermionic field perturbations, radiated from black holes that carry quantum gravitational corre…
Quantum maximally symmetric space-times
Pedro Meert, Andrea Giusti, Roberto Casadio
We show that 4-dimensional maximally symmetric spacetimes can be obtained from a coherent state quantisation of gravity, always resulting in geometries that approach the Minkowski…
Quasinormal modes for coherent quantum black holes
Tommaso Antonelli, Andrea Giusti, Roberto Casadio +1
Coherent quantum black holes are quantum geometries obtained by means of a mean-field-like approach to the gravitational interaction. This procedure attenuates the classical spacet…
Mass (re)distribution for quantum dust cores of black holes
L. Gallerani, A. Mentrelli, A. Giusti +1
The collective ground state for a spherical symmetric dust ball has been investigated recently in [R. Casadio, Phys. Lett. B 843 (2023) 138055]. In this study, we refine that model…
Quantum Gravitational Hair in Gravastars and Observational Tests
Italo Perrucci, Folkert Kuipers, Roberto Casadio
Using the effective field theory of quantum gravity at second order in curvature, we calculate quantum corrections to the metric of gravastars and the closely related dark energy s…
Horizon quantum mechanics for coherent quantum black holes
Wenbin Feng, Andrea Giusti, Roberto Casadio
The formalism of the horizon quantum mechanics is applied to electrically neutral and spherically symmetric black hole geometries emerging from coherent quantum states of gravity t…
Black Holes with a charged quantum dust core
R. Casadio, R. da Rocha, A. Giusti +1
To understand the nature of the black holes that exist in the Universe, it is also necessary to study what happens to the (quantum) matter that collapses and forms such objects. In…
Quantum hair and entropy for slowly rotating quantum black holes
Wenbin Feng, Roldao da Rocha, Roberto Casadio
We study the quantum hair associated with coherent states describing slowly rotating black holes and show how it can be naturally related with the Bekenstein-Hawking entropy and wi…
Thermodynamic and configurational entropy of quantum Schwarzschild geometries
R. Casadio, R. da Rocha, A. Giusti +1
We study different entropies for coherent states representing the geometry of spherically symmetric compact systems. We show that the thermodynamic entropy reproduces the Bekenstei…
Localised particles and fuzzy horizons: A tool for probing Quantum Black Holes
R. Casadio
The horizon is a classical concept that arises in general relativity, and is therefore not clearly defined when the source cannot be reliably described by classical physics. To any…