Zobrazeno 1 - 10
of 150
pro vyhledávání: '"nonlocal gravity"'
Publikováno v:
Nuclear Physics B, Vol 1007, Iss , Pp 116674- (2024)
In this work we study static spherically symmetric solutions of effective field equations related to local and nonlocal higher-derivative gravity models, based on their associated effective delta sources. This procedure has been applied to generate m
Externí odkaz:
https://doaj.org/article/91c93c771e24436ba1dd4b7d8b0922b0
Autor:
Mario J. Pinheiro
Publikováno v:
Applied Sciences, Vol 14, Iss 5, p 1833 (2024)
This investigation introduces a new variational approach to refining Poisson’s equation, enabling the inclusion of a broader spectrum of physical phenomena, particularly in the emerging fields of spintronics and the analysis of resonant structures.
Externí odkaz:
https://doaj.org/article/7316f61e847740d8a49f6254965ad8ab
Akademický článek
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Akademický článek
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Autor:
Valeri P. Frolov, Jose Pinedo Soto
Publikováno v:
Symmetry, Vol 15, Iss 9, p 1771 (2023)
In the present paper, we discuss a nonlocal modification of the Kerr metric. Our starting point is the Kerr–Schild form of the Kerr metric gμν=ημν+Φlμlμ. Using Newman’s approach, we identify a shear free null congruence l with the generat
Externí odkaz:
https://doaj.org/article/517a8ee195414daa8c06e0b4ab23ea39
Publikováno v:
Universe, Vol 9, Iss 9, p 377 (2023)
Within the framework of the local limit of nonlocal gravity (NLG), we investigate a class of Bianchi type I spatially homogeneous but anisotropic cosmological models. The modified field equations are presented in this case, and some special solutions
Externí odkaz:
https://doaj.org/article/6c629c0fee5d4373b398b89cd9f7d1c9
Autor:
Bahram Mashhoon
Publikováno v:
Symmetry, Vol 14, Iss 10, p 2116 (2022)
Nonlocal gravity (NLG) is a classical nonlocal generalization of Einstein’s theory of gravitation based on a certain analogy with the nonlocal electrodynamics of media. The history dependence enters NLG through a constitutive relation involving a c
Externí odkaz:
https://doaj.org/article/a75e3ac1f42746a48a6653e14fd3f99d
Autor:
Mahmood Roshan, Bahram Mashhoon
Publikováno v:
Universe, Vol 8, Iss 9, p 470 (2022)
Nonlocal gravity (NLG) is a classical nonlocal generalization of Einstein’s theory of gravitation developed in close analogy with the nonlocal electrodynamics of media. It appears that the nonlocal aspect of the universal gravitational interaction
Externí odkaz:
https://doaj.org/article/b05ff17e385b434bb9f41e035e2f5498
Publikováno v:
Universe, Vol 8, Iss 7, p 341 (2022)
Black hole shadow and gravitational lensing play important roles in testing gravitational theories in the strong field regime. As the first-order modifications from quantum gravity, the nonlocality can be manifested by black hole shadow and gravitati
Externí odkaz:
https://doaj.org/article/1eb7b37c9b3f4d6e9f85e95b3aae5211