Zobrazeno 1 - 10
of 2 341
pro vyhledávání: '"Contreras, E"'
Publikováno v:
Physics of the Dark Universe, Volume 45, 2024, 101529, ISSN 2212-6864
We study the spontaneous scalarization of charged black holes in Einstein's gravity minimally coupled to power--Maxwell electrodynamics which, in turn, is non--minimally coupled to a real scalar field. We point out the existence of a specific power f
Externí odkaz:
http://arxiv.org/abs/2405.20442
In this work, we undertake a perturbative analysis of the topological non-Abelian Chern-Simons-Wong model with the aim to explicitly construct the second-order on-shell action. The resulting action is a topological quantity depending solely on closed
Externí odkaz:
http://arxiv.org/abs/2405.20437
Autor:
Rueda, A., Contreras, E.
Publikováno v:
Annals of Physics 459, 169540 (2023)
In this work, we analyze the behavior of light and matter as they pass near and through a traversable wormhole. In particular, we study the trajectories of massive and massless particles and the dust accretion around a traversable wormhole previously
Externí odkaz:
http://arxiv.org/abs/2311.08344
Publikováno v:
Eur. Phys. J. C 83, 894 (2023)
In this work, we construct a fractional matter sector for general relativity. In particular, we propose a suitable fractional anisotropy function relating both the tangential and radial pressure of a spherically symmetric fluid based on the Gr\"unwal
Externí odkaz:
http://arxiv.org/abs/2311.08341
Autor:
Di Teodoro, A., Contreras, E.
Publikováno v:
Eur. Phys. J. C (2023) 83:434
In this work, we construct a modified version of the Einstein field equations for a vacuum and spherically symmetric spacetime in terms of the Riemann-Louville fractional derivative. The main difference between our approach and other works is that we
Externí odkaz:
http://arxiv.org/abs/2305.15232
Publikováno v:
Phys. Rev. D, 107, 064010 (2023)
We present a detailed analysis of a general relativistic static spherical symmetric distribution in which both the radial and tangential pressures follow a master polytropic equation of state that generalizes the standard treatment and avoids the app
Externí odkaz:
http://arxiv.org/abs/2303.04211
A static and spherically symmetric hairy black hole in the framework of the Gravitational Decoupling
Publikováno v:
Fortschr. Phys.2023, 2200171
In this work we construct a static and spherically symmetric black hole geometry supported by a family of generic mono-parametric sources thorough the Gravitational Decoupling. The parameter characterizing the matter sector can be interpreted as hair
Externí odkaz:
http://arxiv.org/abs/2303.04119
Publikováno v:
Eur. Phys. J. C, Eur. Phys. J. C 82, 420 (2022)
In this work we construct traversable wormholes geometries in the framework of the complexity factor. We provide the redshift function of a Casimir traversable wormhole which, in combination with a non--vanishing complexity factor, leads to a travers
Externí odkaz:
http://arxiv.org/abs/2208.10261
Publikováno v:
Eur. Phys. J. C 82, 187 (2022)
In this work we use the vanishing complexity factor as a supplementary condition to construct uncharged and charged like--Durgapal models. We provide the $g_{tt}$ component of the metric of the well-known Durgapal IV and V solutions and a particular
Externí odkaz:
http://arxiv.org/abs/2208.10260
Publikováno v:
Annals Phys 436, 168671 (2022)
We use the definition of complexity for static and self--gravitating objects to build up three physical general relativistic anisotropic models fulfilling the vanishing complexity condition which serves to provide the extra information needed to clos
Externí odkaz:
http://arxiv.org/abs/2208.10594