10 citations · 22 across the 11 of their papers we have counts for
11 papers
Non-trivial boundary conditions in general-relativistic models
Davide Astesiano, Matteo Luca Ruggiero, Federico Re
We propose an alternative interpretation of dark matter effects within the framework of General Relativity. In particular, we suggest that, in astrophysical and cosmological contex…
On the catastrophe time of fluids under the action of a gravitational field
D. Astesiano, G. Ortenzi, M. L. Ruggiero
Motivated by the central role of the Zel'dovich approximation in the description of cosmic structure formation through gravitational collapse, we investigate Burgers-type dynamics…
Physics is simple only when analyzed locally
Matteo Luca Ruggiero
The definition of a reference frame in General Relativity is achieved through the construction of a congruence of time-like world-lines. In this framework, splitting techniques ena…
Gravitational lensing observables in stationary and axisymmetric solutions in general relativity
Matteo Luca Ruggiero, Davide Astesiano
We investigate light propagation in self-gravitating systems composed of an axially symmetric, stationary, rotating dust fluid. These configurations are intrinsically relativistic,…
On the low-energy limit of stationary and axisymmetric solutions in General Relativity
Davide Astesiano, Matteo Luca Ruggiero
We study the low-energy limit of General Relativity in the presence of stationarity and axial symmetry, coupled to dust. Specifically, we demonstrate that differences between the d…
Quantum two-level systems and gravitational waves
Matteo Luca Ruggiero
We study the interaction between gravitational waves and a quantum two-level system consisting of a spin 1/2 particle using the formalism of the proper detector frame. This approac…
Effects of gravitational waves on electromagnetic fields
Matteo Luca Ruggiero
We focus on the interaction of a plane gravitational wave with electromagnetic fields and we describe this interaction in the proper detector frame where, thanks to the introductio…
Particle motion in a rotating dust spacetime: the Bonnor solution
Davide Astesiano, Donato Bini, Andrea Geralico +1
We investigate the geometrical properties, spectral classification, geodesics, and causal structure of the Bonnor's spacetime [Journal of Physics A Math. Gen., \textbf{10}, 1673 (1…
A note on the description of plane gravitational waves in Fermi coordinates
Matteo Luca Ruggiero
We use the formalism of Fermi coordinates to describe the interaction of a plane gravitational wave in the proper detector frame. In doing so, we emphasize that in this frame the a…
Synchronization and Fundamental Time: a Connection between Relativity and Quantum Mechanics
Matteo Luca Ruggiero
An interesting connection between special relativity and quantum mechanics was put forward by Louis de Broglie, about 60 years ago, who focused on the link between synchronization…
The Milky Way rotation curve in Horava - Lifshitz theory
V. F. Cardone, N. Radicella, M. L. Ruggiero +1
The Horava - Lifshitz (HL) theory has recently attracted a lot of interest as a viable solution to some quantum gravity related problems and the presence of an effective cosmologic…