Zobrazeno 1 - 10
of 130
pro vyhledávání: '"De Falco, Vittorio"'
Autor:
Falcón-Gómez, Enderson, De Falco, Vittorio, Abdalmalak, Kerlos Atia, Amor-Martín, Adrián, De La Rubia, Valentín, Santamaría-Botello, Gabriel, Muñoz, Luis Enrique García
We demonstrate that a fully metallic and air-filled geodesic waveguide can be employed as an analog electromagnetic model of a static and spherically symmetric gravitational field. By following the Plebanski formalism, a space-time metric of the afor
Externí odkaz:
http://arxiv.org/abs/2408.01136
Gravitational radiation-reaction phenomena occurring in the dynamics of inspiralling compact binary systems are investigated at the first post-Newtonian order beyond the quadrupole approximation in the context of Einstein-Cartan theory, where quantum
Externí odkaz:
http://arxiv.org/abs/2401.13374
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 first post-Newtonian order. In this framework, we provide some ana
Externí odkaz:
http://arxiv.org/abs/2309.00319
Publikováno v:
Phys. Rev. D, 2023, 108, 104030
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 achieved by means of the geometric degrees of freedom. In particular, we
Externí odkaz:
http://arxiv.org/abs/2308.05440
Publikováno v:
Eur. Phys. J. C 83, 915 (2023)
In the framework of metric-affine gravity, we consider the role of the boundary term in Symmetric Teleparallel Gravity assuming $f(Q,B)$ models where $f$ is a smooth function of the non-metricity scalar $Q$ and the related boundary term $B$. Starting
Externí odkaz:
http://arxiv.org/abs/2307.13280
Autor:
De Falco, Vittorio
Publikováno v:
Phys. Rev. D 108, 024051, Published 20 July 2023
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 consider them in the equatorial plane around a general stationary and axiall
Externí odkaz:
http://arxiv.org/abs/2307.03151
Autor:
De Falco, Vittorio, Bajardi, Francesco, D'Agostino, Rocco, Benetti, Micol, Capozziello, Salvatore
Different astrophysical methods can be combined to detect possible deviations from General Relativity. In this work, we consider a class of $f(R)$ gravity models selected by the existence of Noether symmetries. In this framework, it is possible to de
Externí odkaz:
http://arxiv.org/abs/2305.04695
Autor:
De Falco, Vittorio
The general relativistic Poynting-Robertson (PR) effect is a very important dissipative phenomenon occurring in high-energy astrophysics. Recently, it has been proposed a new model, which upgrades the two-dimensional (2D) description in the three-dim
Externí odkaz:
http://arxiv.org/abs/2303.15037
Autor:
Falcón-Gómez, Enderson, Amor-Martín, Adrián, De La Rubia, Valentín, Santamaría-Botello, Gabriel, De Falco, Vittorio, Muñoz, Luis Enrique Garcia
Publikováno v:
Eur. Phys. J. C 82, 1175 (2022)
In this manuscript, we present an alternative method for calculating null geodesics in General Static Isotropic Metrics in General Relativity and Extended Theories of Gravity. By applying a conformal transformation, we are able to consider an analogu
Externí odkaz:
http://arxiv.org/abs/2303.06085
Autor:
Falcón-Gomez, Enderson, De Falco, Vittorio, Abdalmalak, Kerlos Atia, Amor-Martín, Adrián, De La Rubia, Valentín, Santamaría-Botello, Gabriel, Muñoz, Luis Enrique García
We study the interaction among gravitational and electromagnetic plane waves by means of an analogue electromagnetic model of gravity, where the gravitational properties are encoded in the electromagnetic properties of a material in flat space-time.
Externí odkaz:
http://arxiv.org/abs/2303.05810