Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of Naples Federico IIIT4k papers
- Centre National de la Recherche ScientifiqueFR3.7k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di Roma IIT3.4k papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR3.3k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di GenovaIT3.1k papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR3.1k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di PisaIT3k papers
- Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di FrascatiIT2.9k papers
- Rutherford Appleton LaboratoryGB2.8k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di BolognaIT2.8k papers
- Sapienza University of RomeIT2.7k papers
- The Ohio State UniversityUS2.7k papers
40 papers · 2 filters
Computing Challenges for the Einstein Telescope project
Stefano Bagnasco, Antonella Bozzi, Tassos Fragos +14
The discovery of gravitational waves, first observed in September 2015 following the merger of a binary black hole system, has already revolutionised our understanding of the Unive…
Search for gravitational wave signals from known pulsars in LIGO-Virgo O3 data using the 5n-vector ensemble method
Luca D'Onofrio, Rosario De Rosa, Cristiano Palomba +16
The 5n-vector ensemble method is a multiple test for the targeted search of continuous gravitational waves from an ensemble of known pulsars. This method can improve the detection…
Modified Kerr black holes surrounded by dark matter spike
Salvatore Capozziello, Soroush Zare, Luis M. Nieto +1
We study supermassive black holes (SMBH), surrounded by a dark matter (DM) spike, that can be found at the centers of Milky Way and galaxies and are accompanied by a s…
Parity violation in gravitational waves and observational bounds from third-generation detectors
Matteo Califano, Rocco D'Agostino, Daniele Vernieri
In this paper, we analyze parity-violating effects in the propagation of gravitational waves (GWs). For this purpose, we adopt a newly proposed parametrized post-Einstenian (PPE) f…
Black hole interior quantization: a minimal uncertainty approach
Pasquale Bosso, Octavio Obregón, Saeed Rastgoo +1
In a previous work we studied the interior of the Schwarzschild black hole implementing an effective minimal length, by applying a modification to the Poisson brackets of the theor…
Gravitational wave oscillations in bimetric cosmology
David Brizuela, Marco de Cesare, Araceli Soler Oficial
Unlike general relativity, in bimetric gravity linear gravitational waves do not evolve as free fields. In this theory there are two types of tensor perturbations, whose interactio…
Cosmic Growth in Teleparallel Gravity
Salvatore Capozziello, Maria Caruana, Gabriel Farrugia +2
Physical evolution of cosmological models can be tested by using expansion data, while growth history of these models is capable of testing dynamics of the inhomogeneous parts of e…
Analytical results for binary dynamics at the first post-Newtonian order in Einstein-Cartan theory with the Weyssenhoff fluid
Vittorio De Falco, Emmanuele Battista
The quantum spin effects inside matter can be modeled via the Weyssenhoff fluid, which permits to unearth a formal analogy between general relativity and Einstein-Cartan theory at…
The Gauss-Bonnet topological scalar in the Geometric Trinity of Gravity
Francesco Bajardi, Daniel Blixt, Salvatore Capozziello
The Gauss-Bonnet topological scalar is presented in metric-teleparallel formalism as well as in the symmetric and general teleparallel formulations. In all of the aforementioned fr…
Coherent states for generalized uncertainty relations as Tsallis probability amplitudes: new route to non-extensive thermostatistics
Petr Jizba, Gaetano Lambiase, Giuseppe Gaetano Luciano +1
We study coherent states associated to a generalized uncertainty principle (GUP). We separately analyze the cases of positive and negative deformation parameter , showing that t…
The Noether Symmetry Approach: Foundation and applications. The case of scalar-tensor Gauss-Bonnet gravity
Francesco Bajardi, Salvatore Capozziello, Tiziana Di Salvo +1
We sketch the main features of the Noether Symmetry Approach, a method to reduce and solve dynamics of physical systems by selecting Noether symmetries, which correspond to conserv…
Static and spherically symmetric wormholes in metric-affine theories of gravity
Vittorio De Falco, Salvatore Capozziello
We consider static and spherically symmetric wormhole solutions in extended metric-affine theories of gravity supposing that stability and traversability of these objects can be ac…
Epicyclic frequencies in the equatorial plane around stationary and axially symmetric wormhole geometries
Vittorio De Falco
Epicyclic frequencies are usually observed in X-ray binaries and constitute a powerful astrophysical mean to probe the strong gravitational field around a compact object. We consid…
The role of the boundary term in symmetric teleparallel gravity
Salvatore Capozziello, Vittorio De Falco, Carmen Ferrara
In the framework of metric-affine gravity, we consider the role of the boundary term in Symmetric Teleparallel Gravity assuming models where is a smooth function of th…
On the parameters of the spherically symmetric parametrized Rezzolla-Zhidenko spacetime through solar system tests, orbit of S2 star about Sgr A, and quasiperiodic oscillations
Sanjar Shaymatov, Bobomurat Ahmedov, Mariafelicia De Laurentis +4
In this paper, we find the higher order expansion parameters and of spherically symmetric parametrized Rezzolla--Zhidenko (PRZ) spacetime by using its functions of the radi…
Exploring departures from Schwarzschild black hole in gravity
Vittorio De Falco, Francesco Bajardi, Rocco D'Agostino +2
Different astrophysical methods can be combined to detect possible deviations from General Relativity. In this work, we consider a class of gravity models selected by the ex…
Neutrino decoherence and violation of the strong equivalence principle
Luca Buoninfante, Giuseppe Gaetano Luciano, Luciano Petruzziello +1
We analyze the dynamics of neutrino Gaussian wave-packets, the damping of flavor oscillations and decoherence effects within the framework of extended theories of gravity. In parti…
Quantum-spacetime effects on nonrelativistic Schrödinger evolution
Fabian Wagner, Gislaine Varão, Iarley P. Lobo +1
The last three decades have witnessed the surge of quantum gravity phenomenology in the ultraviolet regime as exemplified by the Planck-scale accuracy of time-delay measurements fr…
Positivity Conditions for Generalised Schwarzschild Space-Times
A. D'Alise, G. Fabiano, D. Frattulillo +4
We analyse the impact of positivity conditions on static spherically symmetric deformations of the Schwarzschild space-time. The metric is taken to satisfy, at least asymptotically…
Testing space-time geometries and theories of gravity at the Galactic Center with pulsar's time delay
Riccardo Della Monica, Ivan de Martino, Mariafelicia de Laurentis
We developed a numerical methodology to compute the fully-relativistic propagation time of photons emitted by a pulsar in orbit around a massive compact object, like the supermassi…
Backreaction of scalar waves on black holes at low frequencies
Marco de Cesare, Roberto Oliveri
We study the accretion of a Schwarzschild black hole due to spherically symmetric perturbations sourced by a minimally coupled massless scalar field. The backreaction of the black…
Minisuperspace quantum cosmology in gravity
Francesco Bajardi, Salvatore Capozziello
symmetric-teleparallel gravity is considered in view of Quantum Cosmology. Specifically, we derive cosmological equations for models and then investigate the related…
On the nature of Bondi-Metzner-Sachs transformations
Zahra Mirzaiyan, Giampiero Esposito
This paper investigates first the four branches of BMS transformations, motivated by the classification into elliptic, parabolic, hyperbolic and loxodromic proposed a few years ago…
DeWitt boundary condition in one-loop quantum cosmology
Giampiero Esposito
DeWitt's suggestion that the wave function of the universe should vanish at the classical big-bang singularity is here considered within the framework of one-loop quantum cosmology…