Horizon-scale tests of gravity theories and fundamental physics from the Event Horizon Telescope image of Sagittarius A

S Vagnozzi, R Roy, YD Tsai, L Visinelli… - … and Quantum Gravity, 2023 - iopscience.iop.org
Horizon-scale images of black holes (BHs) and their shadows have opened an
unprecedented window onto tests of gravity and fundamental physics in the strong-field …

[HTML][HTML] Shadow, lensing, quasinormal modes, greybody bounds and neutrino propagation by dyonic ModMax black holes

RC Pantig, L Mastrototaro, G Lambiase… - The European Physical …, 2022 - Springer
Motivated by recent work on the Modified Maxwell (ModMax) black holes [Phys Lett B
10.1016/j. physletb. 2020.136011], which are invariant in duality rotations and conformal …

Curved-spacetime dynamics of spin- particles in superposed states from a WKB approximation of the Dirac equation

F Hammad, M Simard, R Saadati, A Landry - Physical Review D, 2024 - APS
We investigate the dynamics of spin-1 2 particles that are freely propagating in superposed
states in curved spacetime. We first make use of a Wentzel-Kramers-Brillouin approximation …

Neutrino flavor oscillations inside matter in conformal coupling models

F Hammad, P Sadeghi, N Fleury - Physical Review D, 2023 - APS
We recently studied neutrinos flavor oscillations in vacuum within conformal coupling
models. In this paper, we extend that analysis by investigating neutrino flavor oscillations …

[HTML][HTML] Neutrino decoherence and violation of the strong equivalence principle

L Buoninfante, GG Luciano, L Petruzziello, L Smaldone - Physics Letters B, 2023 - Elsevier
We analyze the dynamics of neutrino Gaussian wave-packets, the dam** of flavor
oscillations and decoherence effects within the framework of extended theories of gravity …

[HTML][HTML] Neutrino flavor oscillations in a rotating spacetime

H Swami - The European Physical Journal C, 2022 - Springer
We study neutrino oscillations in a rotating spacetime under the weak gravity limit for the
trajectories of neutrinos which are constrained in the equatorial plane. Using the asymptotic …

Neutrino spin oscillation in screening models revisited

F Hammad, N Fleury, P Sadeghi - Physical Review D, 2023 - APS
We study, using the Mathisson-Papapetrou-Dixon equations, the spin oscillation of neutrinos
when the latter are coupled to the scalar field of screening models of dark energy. First, we …

Neutrino spin oscillations in a magnetized Polish doughnut

M Dvornikov - Journal of Cosmology and Astroparticle Physics, 2023 - iopscience.iop.org
We study the gravitational scattering of ultrarelativistic neutrinos off a rotating supermassive
black hole (BH) surrounded by a thick magnetized accretion disk. Neutrinos interact …

Gravitational effects on neutrino decoherence in the lense–thirring metric

GG Luciano, M Blasone - Universe, 2021 - mdpi.com
We analyze the effects of gravity on neutrino wave packet decoherence. As a specific
example, we consider the gravitational field of a spinning spherical body described by the …

Three-flavor, full momentum space neutrino spin oscillations in neutron star mergers

HR Purcell, S Richers, AV Patwardhan, F Foucart - Physical Review D, 2024 - APS
In the presence of anisotropic neutrino and antineutrino fluxes, the quantum kinetic
equations drive coherent oscillations in neutrino helicity, frequently referred to as spin …