1.2k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Trieste Astronomical ObservatoryIT826 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di TriesteIT688 papers
- Scuola Internazionale Superiore di Studi AvanzatiIT606 papers
- University of TriesteIT516 papers
- Centre National de la Recherche ScientifiqueFR476 papers
- Ludwig-Maximilians-Universität MünchenDE400 papers
- Instituto de Astrofísica de CanariasES360 papers
- Max Planck Institute for Extraterrestrial PhysicsDE350 papers
- University College LondonGB348 papers
- Institute for High Energy PhysicsES346 papers
- Universidad de La LagunaES335 papers
- Institut d'Astrophysique de ParisFR332 papers
15 papers · 2 filters
Geodesically complete black holes
Raúl Carballo-Rubio, Francesco Di Filippo, Stefano Liberati +1
The 1965 Penrose singularity theorem demonstrates the utterly inevitable and unavoidable formation of spacetime singularities under physically reasonable assumptions, and it remain…
Schwarzschild geometry counterpart in semiclassical gravity
Julio Arrechea, Carlos Barceló, Raúl Carballo-Rubio +1
We investigate the effects of vacuum polarization on vacuum static spherically-symmetric spacetimes. We start from the Polyakov approximation to the renormalized stress-energy tens…
Dark-Energy Instabilities induced by Gravitational Waves
Paolo Creminelli, Giovanni Tambalo, Filippo Vernizzi +1
We point out that dark-energy perturbations may become unstable in the presence of a gravitational wave of sufficiently large amplitude. We study this effect for the cubic Horndesk…
Testing Non-minimally Coupled BEC Dark Matter with Gravitational Waves
Dimitar Ivanov, Stefano Liberati
We study the phenomenology associated to non-minimally coupled dark matter. In particular, we consider the model where the non-minimal coupling arises from the formation of relativ…
Opening the Pandora's box at the core of black holes
Raúl Carballo-Rubio, Francesco Di Filippo, Stefano Liberati +1
Unless the reality of spacetime singularities is assumed, astrophysical black holes cannot be identical to their mathematical counterparts obtained as solutions of the Einstein fie…
The information loss problem: an analogue gravity perspective
Stefano Liberati, Giovanni Tricella, Andrea Trombettoni
Analogue gravity can be used to reproduce the phenomenology of quantum field theory in curved spacetime and in particular phenomena such as cosmological particle creation and Hawki…
Neutron star sensitivities in Hořava gravity after GW170817
Enrico Barausse
Hořava gravity breaks boost invariance in the gravitational sector by introducing a preferred time foliation. The dynamics of this preferred slicing is governed, in the low-energy…
Resonant Decay of Gravitational Waves into Dark Energy
Paolo Creminelli, Giovanni Tambalo, Filippo Vernizzi +1
We study the decay of gravitational waves into dark energy fluctuations , taking into account the large occupation numbers. We describe dark energy using the effective field the…
Black hole quantum atmosphere for freely falling observers
Ramit Dey, Stefano Liberati, Zahra Mirzaiyan +1
We analyze Hawking radiation as perceived by a freely-falling observer and try to draw an inference about the region of origin of the Hawking quanta. To do so, first we calculate t…
Semiclassical gravity effects near horizon formation
Carlos Barceló, Valentin Boyanov, Raúl Carballo-Rubio +1
We study the magnitude of semiclassical gravity effects near the formation of a black-hole horizon in spherically-symmetric spacetimes. As a probe for these effects we use a quanti…
Black holes in General Relativity and beyond
Enrico Barausse
The recent detections of gravitational waves from binary systems of black holes are in remarkable agreement with the predictions of General Relativity. In this pedagogical mini-rev…
Science with the TianQin observatory: Preliminary results on testing the no-hair theorem with ringdown signals
Changfu Shi, Jiahui Bao, Haitian Wang +6
We study the capability of the space-based gravitational wave observatory TianQin to test the no-hair theorem of General Relativity, using the ringdown signal from the coalescence…
Well-posed Cauchy formulation for Einstein-æther theory
Olivier Sarbach, Enrico Barausse, Jorge A. Preciado-López
We study the well-posedness of the initial value (Cauchy) problem of vacuum Einstein-aether theory. The latter is a Lorentz-violating gravitational theory consisting of General Rel…
Generalized no-hair theorems without horizons
Carlos Barceló, Raúl Carballo-Rubio, Stefano Liberati
The simplicity of black holes, as characterized by no-hair theorems, is one of the most important mathematical results in the framework of general relativity. Are these theorems un…
Tests of Quantum Gravity-Induced Non-Locality: Hamiltonian formulation of a non-local harmonic oscillator
Alessio Belenchia, Dionigi M. T. Benincasa, Francesco Marin +4
Motivated by the development of on-going optomechanical experiments aimed at constraining non-local effects inspired by some quantum gravity scenarios, the Hamiltonian formulation…