output
19922026
most citedObservation of Gravitational Waves from a Binary Black Hole Merger

14.2k citations

researchers with a paper here

Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

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762 papers · 1 filter

gr-qc2026

Emergence of Gravity's Dynamical and Topological Sectors from Pre-geometry

Andrea Addazi, Giuseppe Meluccio

We identify the complete set of fundamental building blocks for a 4D pre-geometric theory of gravity. Based on a gauge theory of or coupled to a Higgs-like fiel…

gr-qc2026

Poincaré asymptotic expansion in black hole theory

Giampiero Esposito, Marco Refuto

In studying the dynamics of fields in black hole theory, the method of separation of variables makes it possible to isolate the radial part of the full solution in many important p…

gr-qc2026

Gravitational lensing by extremal rotating black holes in the strong deflection limit

Fabiano Feleppa, Valerio Bozza, Welmoed Marit de Graaf

In the strong deflection regime, light rays passing close to an astrophysical black hole may remain trapped near unstable photon orbits for a long time before escaping to infinity.…

gr-qc2026

Equivalence Principle violation in metric-affine gravity and finite-temperature effects

Emmanuele Battista, Roberto Campagnola, Salvatore Capozziello +1

Possible violations of the equivalence principle are investigated within the framework of metric-affine gravity and their connection to finite-temperature effects are highlighted.…

gr-qc2026

Primary Constraints of Newer General Relativity

Carmen Ferrara, Alexey Golovnev, María José Guzmán

We study the primary constraint structure of Newer General Relativity, a gravity theory based on a torsionless teleparallel geometry. The gravitational action is built from a scala…

gr-qc2026

Mechanical Long Baseline Differential Gradiometers as Low Frequency Gravitational Wave Detectors

Enrico Calloni, Annalisa Allocca, Antonino Chiummo +12

We present a new differential mechanical gradiometer for the detection of low-frequency Gravitational Waves. The frequency range is 0.05 to 1 Hz, a frequency gap not covered either…

gr-qc2026

Friedmann cosmology with fluids and hyperfluids

Ilaria Andrei, Damianos Iosifidis, Laur Järv +1

We discuss flat Friedmann-Lemaitre-Robertson-Walker (FLRW) metric-affine cosmology where the metric and connection as well as the matter energy-momentum and hypermomentum all obey…

gr-qc2026

Extended Theories of Electrodynamics in Gravity

Francesco Bajardi, Micol Benetti, Salvatore Capozziello +1

Within the general framework of gravity, we introduce a function of the electromagnetic curvature invariant that couples minimally to gravitation to ensure a…

gr-qc2026★ 9 cited

Energy Conditions in Gauss-Bonnet Gravity

Francesco Bajardi

We study the Energy Conditions in modified gravity, with being the topological Gauss-Bonnet term. Then we use the cosmographic parameters to constrain the functional for…

gr-qc2026★ 1 cited

Minisuperspace Cosmology in Extended Geometric Trinity of Gravity

Emmanuele Battista, Salvatore Capozziello, Stefano Pastore

We investigate Extended Geometric Trinity of Gravity at both classical and quantum cosmological levels using the minisuperspace approach. Adopting Noether symmetries to select viab…

gr-qc2026★ 4 cited

Constraining -Exponential Inflation with the latest ACT observations

Jureeporn Yuennan, Farruh Atamurotov, Salvatore Capozziello +1

Recent observations from the Atacama Cosmology Telescope (ACT), especially when combined with DESI baryon acoustic oscillation data, indicate a scalar spectral index higher t…

gr-qc2026★ 8 cited

Shadow signatures and energy accumulation in Lorentzian-Euclidean black holes

Emmanuele Battista, Salvatore Capozziello, Che-Yu Chen

The Lorentzian-Euclidean black hole has been recently introduced as a geodesically complete spacetime featuring a signature shift at the event horizon where causal geodesics are pr…

gr-qc2026★ 1 cited

Confronting eikonal and post-Kerr methods with numerical evolution of scalar field perturbations in spacetimes beyond Kerr

Ciro De Simone, Sebastian H. Völkel, Kostas D. Kokkotas +2

The accurate computation of quasinormal modes from rotating black holes beyond general relativity is crucial for testing fundamental physics with gravitational waves. In this study…

gr-qc2025★ 1 cited

Primordial black hole driven cosmic acceleration

Konstantinos Dialektopoulos, Theodoros Papanikolaou, Vasilios Zarikas

We propose a natural mechanism for cosmic acceleration driven by primordial black holes (PBHs) with repulsive behavior, within a ''Swiss Cheese'' cosmological framework. Considerin…

gr-qc2025★ 1 cited

Ringdown of a black hole sourced by a Burkert-density effective anisotropic source

Yi Yang, Gaetano Lambiase, Ali Ovgun +2

We construct a static, spherically symmetric black hole spacetime sourced by an effective anisotropic matter distribution whose energy density follows the cored Burkert profile. Th…

gr-qc2025★ 1 cited

Constraining a de Broglie--Bohm quantum bounce cosmology with Planck data

Micol Benetti, Rudnei O. Ramos, Renato Silva +1

This work investigates a singularity-free early Universe within the paradigm of quantum cosmology. We develop a bouncing model where the singularity is resolved via the de Broglie-…

gr-qc2025★ 100 cited

GW250114: testing Hawking's area law and the Kerr nature of black holes

The LIGO Scientific Collaboration, the Virgo Collaboration, the KAGRA Collaboration +1785

The gravitational-wave signal GW250114 was observed by the two LIGO detectors with a network matched-filter signal-to-noise ratio of 80. The signal was emitted by the coalescence o…

gr-qc2025★ 1 cited

Charge constraint on M87* with twisted light

Fabiano Feleppa, Fabrizio Tamburini, Gaetano Lambiase

We propose a novel method to constrain the electric charge of the supermassive black hole M87* by analyzing the orbital angular momentum content of the light it emits. By leveragin…

gr-qc2025

Is the CDM Model in Crisis?

Himanshu Chaudhary, Salvatore Capozziello, Subhrat Praharaj +2

We present strong evidence for dynamical dark energy that challenges the standard CDM model. Several dark energy scenarios are explored, including CDM, logarithmic, expo…

gr-qc2025★ 10 cited

Imprints of screened dark energy on nonlocal quantum correlations

Fabiano Feleppa, Gaetano Lambiase, Sunny Vagnozzi

We investigate how screening mechanisms, reconciling light scalar fields driving cosmic acceleration with local fifth force constraints, can be probed via their impact on non-local…

gr-qc2025★ 10 cited

Interferometric signature of higher-order images in a parametrized framework

Fabiano Feleppa, Fabio Aratore, Valerio Bozza

This paper investigates gravitational lensing in the strong deflection limit, focusing particularly on higher-order images produced near compact objects such as black holes and the…

gr-qc2025

Multiple-scale analysis of modified gravitational-wave propagation

Marco de Cesare, Mairi Sakellariadou, Benjamin Sutton

We employ multiple-scale analysis to systematically derive analytical approximations describing the cosmological propagation of gravitational waves beyond general relativity, in a…

gr-qc2025★ 3 cited

All-sky search for long-duration gravitational-wave transients in the first part of the fourth LIGO-Virgo-KAGRA Observing run

The LIGO Scientific Collaboration, the Virgo Collaboration, the KAGRA Collaboration +1772

We present an all-sky search for long-duration gravitational waves (GWs) from the first part of the LIGO-Virgo-KAGRA fourth observing run (O4), called O4a and comprising data taken…

gr-qc2025★ 30 cited

Null geodesics, causal structure, and matter accretion in Lorentzian-Euclidean black holes

Salvatore Capozziello, Emmanuele Battista, Silvia De Bianchi

Recently, we introduced the Lorentzian-Euclidean black hole, a static and spherically symmetric solution of vacuum Einstein equations that exhibits a change in metric signature acr…