Zobrazeno 1 - 10
of 54
pro vyhledávání: '"Capriolo, Maurizio"'
We investigate gravitational waves generated in $f(Q,B)$ non-metric gravity, i.e., a theory of gravity described by a non-metric compatible connection, free of torsion and curvature. It is an extension of symmetric teleparallel gravity, equipped with
Externí odkaz:
http://arxiv.org/abs/2407.14862
We investigate the polarization modes of gravitational waves in $f(Q)$ non-metric gravity without gauge fixing. The main result of this study is that no further scalar mode appears more than the two standard plus and cross transverse polarizations of
Externí odkaz:
http://arxiv.org/abs/2405.16163
We investigate gravitational waves in the $f(Q)$ gravity, i.e., a geometric theory of gravity described by a non-metric compatible connection, free from torsion and curvature, known as symmetric-teleparallel gravity. We show that $f(Q)$ gravity exhib
Externí odkaz:
http://arxiv.org/abs/2401.06424
In General Relativity, the issue of defining the gravitational energy contained in a given spatial region is still unresolved, except for particular cases of localized objects where the asymptotic flatness holds for a given spacetime. In principle, a
Externí odkaz:
http://arxiv.org/abs/2301.04023
In General Relativity, there have been many proposals for defining the gravitational energy density, notably those proposed by Einstein, Tolman, Landau and Lifshitz, Papapetrou, M{\o}ller, and Weinberg. In this review, we firstly explored the energy-
Externí odkaz:
http://arxiv.org/abs/2208.02741
Autor:
Capriolo, Maurizio
In this paper we examine gravitational radiation in higher order non-local gravity described by the non-local gravitational Lagrangian density $\mathcal{L}_{g}=R+\sum_{h=1}^{n}a_{h}R\Box^{-h}R$. This non-local theory of gravitation always exhibits th
Externí odkaz:
http://arxiv.org/abs/2205.13862
Publikováno v:
In Physics of the Dark Universe July 2024 45
We derive gravitational waves in a theory with non-local curvature corrections to the Hilbert-Einstein Lagrangian. In addition to the standard two massless tensor modes, with plus and cross polarizations, helicity 2 and angular frequency $\omega_{1}$
Externí odkaz:
http://arxiv.org/abs/2107.06972
The teleparallel equivalent of higher order Lagrangians like $L_{\Box R}=-R+a_{0}R^{2}+a_{1}R\Box R$ can be obtained by means of the boundary term $B=2\nabla_{\mu}T^{\mu}$. In this perspective, we derive the field equations in presence of matter for
Externí odkaz:
http://arxiv.org/abs/2010.00451
The detection of gravitational wave modes and polarizations could constitute an extremely important signature to discriminate among different theories of gravity. According to this statement, it is possible to prove that higher-order non-local gravit
Externí odkaz:
http://arxiv.org/abs/2009.12777