Zobrazeno 1 - 10
of 168
pro vyhledávání: '"Barrientos, Jose"'
Electromagnetized Black Holes and Swirling Backgrounds in Nonlinear Electrodynamics: The ModMax case
This work focuses on constructing electromagnetized black holes and vortex-like backgrounds within the framework of the ModMax theory--the unique nonlinear extension of Maxwell's theory that preserves conformal symmetry and electromagnetic duality in
Externí odkaz:
http://arxiv.org/abs/2409.12336
We present a complete, theory-independent classification of $D$-dimensional Kundt spacetimes of Weyl and traceless-Ricci type N. We show that these geometries consist of three invariantly defined subfamilies, namely (generalized) Kundt, pp- and Siklo
Externí odkaz:
http://arxiv.org/abs/2408.15638
Publikováno v:
Eur. Phys. J. C 84, 1011 (2024)
This paper investigates Buchdahl transformations within the framework of Einstein and Einstein-Scalar theories. Specifically, we establish that the recently proposed Schwarzschild-Levi-Civita spacetime can be obtained by means of a Buchdahl transform
Externí odkaz:
http://arxiv.org/abs/2404.12194
Autor:
Barrientos, José, Cisterna, Adolfo, Kolář, Ivan, Müller, Keanu, Oyarzo, Marcelo, Pallikaris, Konstantinos
In this paper, we obtain a complete list of stationary and axisymmetric spacetimes, generated from a Minkowski spacetime using the Ernst technique. We do so by operating on the associated seed potentials with a composition of Ehlers and Harrison tran
Externí odkaz:
http://arxiv.org/abs/2401.02924
Publikováno v:
Gen Relativ Gravit 56, 111 (2024)
Recently, it was shown that type D black holes, encompassed in the large Pleban\'ski--Demia\'nski (PD) family, exhibit a wide class of algebraically general generalizations via the application of Ehlers and Harrison transformations. In this work, we
Externí odkaz:
http://arxiv.org/abs/2309.13656
Autor:
Barrientos, Jose, Cisterna, Adolfo
This paper investigates the integrability properties of Einstein's theory of gravity in the context of accelerating Newman-Unti-Tamburino (NUT) spacetimes by utilizing Ernst's description of stationary and axially symmetric electrovacuum solutions. W
Externí odkaz:
http://arxiv.org/abs/2305.03765
Autor:
Barrientos, José, Mena, José
Publikováno v:
Phys. Rev. D 106, 044064 (2022)
We study the Joule-Thomson expansion in Einstein-Maxwell theory supplemented with the so-called quasitopological electromagnetism, this in the extended phase space thermodynamic approach. We compute the Joule-Thomson coefficient and depict all releva
Externí odkaz:
http://arxiv.org/abs/2206.06018
Theories of non-linear electrodynamics naturally describe deviations from Maxwell's theory in the strong field regime. Among these, of special interest is the recently discovered ModMax electrodynamics, which is a unique 1-parametric generalization o
Externí odkaz:
http://arxiv.org/abs/2205.15777
We present novel regular Euclidean solutions to General Relativity in presence of Maxwell and conformally coupled scalar fields. In particular, we consider metrics of the Eguchi-Hanson and Taub-NUT families to solve the field equations analytically.
Externí odkaz:
http://arxiv.org/abs/2202.13854
Publikováno v:
Phys. Rev. D 106, 024038 (2022)
We present a new family of exact four-dimensional Taub-NUT spacetimes in Einstein-$\Lambda$ theory supplemented with a conformally coupled scalar field exhibiting a power-counting super-renormalizable potential. The construction proceeds as follows:
Externí odkaz:
http://arxiv.org/abs/2202.06706