Zobrazeno 1 - 10
of 24 008
pro vyhledávání: '"theory of general relativity"'
Autor:
Galoppo, Marco, Torrieri, Giorgio
Motivated by known facts about effective field theory and non-Abelian gauge theory, we argue that the post-Newtonian approximation might fail even in the limit of weak fields and small velocities under certain conditions. Namely, the post-Newtonian a
Externí odkaz:
http://arxiv.org/abs/2411.11990
A consistency condition of general relativity as an effective field theory in Minkowskian background uniquely fixes the value of the cosmological constant. In two-loop calculations, including the interaction of gravitons with matter fields, it has be
Externí odkaz:
http://arxiv.org/abs/2405.09301
Publikováno v:
Phys. Rev. D 109, 104004 (2024)
General Relativity (GR) and Unimodular Gravity (UG) provide two equivalent descriptions of gravity that differ in the nature of the cosmological constant. While GR is based on the group of diffeomorphisms that permits the cosmological constant in the
Externí odkaz:
http://arxiv.org/abs/2309.06903
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.
Autor:
Dereli, Tekin, Senikoglu, Yorgo
A consistent variational derivation of the Majorana 4-spinor field equations coupled to Einstein's theory of gravitation is given. The equivalence of the first and the second order variational field equations is explicitly demonstrated. The Lagrange
Externí odkaz:
http://arxiv.org/abs/2209.10960
Autor:
Brown, J. David
The general relativistic theory of elasticity is reviewed from a Lagrangian, as opposed to Eulerian, perspective. The equations of motion and stress-energy-momentum tensor for a hyperelastic body are derived from the gauge-invariant action principle
Externí odkaz:
http://arxiv.org/abs/2004.03641
Autor:
Gegelia, J., Meißner, Ulf-G.
Publikováno v:
Phys. Rev. D 100, 124002 (2019)
Recently in the framework of a two-loop order calculation for an effective field theory of scalar and vector fields interacting with the metric field we have shown that for the cosmological constant term which is fixed by the condition of vanishing v
Externí odkaz:
http://arxiv.org/abs/1909.02733
Autor:
Gegelia, J., Meißner, Ulf-G.
Publikováno v:
Phys. Rev. D 100, 046021 (2019)
In the framework of an effective field theory of general relativity a model of scalar and vector bosons interacting with the metric field is considered. It is shown in the framework of a two-loop order calculation that for the cosmological constant t
Externí odkaz:
http://arxiv.org/abs/1904.03433