6 papers
Non-local gravity effects in cosmological dynamics probed by IceCube/KM3NeT signals and dark matter relic abundance
Salvatore Capozziello, Gaetano Lambiase, Giuseppe Meluccio
Non-local gravity terms have a relevant role in determining the cosmological dynamics. Here we consider curvature- and torsion-based cosmological models where non-local terms can b…
The gravitational energy-momentum pseudo-tensor in non-metric gravity
Salvatore Capozziello, Maurizio Capriolo, Gaetano Lambiase
We derive the affine tensor associated with the energy and momentum densities of both gravitational and matter fields, the complex pseudo-tensor, for non-metric gravity, the…
Excess Radiation from Axion-Photon Conversion
Andrea Addazi, Salvatore Capozziello, Qingyu Gan +2
Two notable anomalies in radio observations -- the excess radiation in the Rayleigh-Jeans tail of the cosmic microwave background, revealed by ARCADE2, and the twice-deeper absorpt…
Non-locality in Quadrupolar Gravitational Radiation
Salvatore Capozziello, Maurizio Capriolo, Amodio Carleo +1
General Relativity suffers for two main problems which have not yet been overcome: it predicts spacetime singularities and cannot be formulated as a perturbative renormalizable the…
Gravitational-wave signatures of gravito-electromagnetic couplings
Theodoros Papanikolaou, Charalampos Tzerefos, Salvatore Capozziello +1
Gravitational waves (GWs) can undoubtedly serve as a messenger from the early Universe acting as well as a novel probe of the underlying gravity theory. In this work, motivated by…
Gravitational tensor and scalar modes in non-metric gravity
Salvatore Capozziello, Maurizio Capriolo, Gaetano Lambiase
We investigate gravitational waves generated in non-metric gravity, i.e., a theory of gravity described by a non-metric compatible connection, free of torsion and curvatur…