Zobrazeno 1 - 10
of 132
pro vyhledávání: '"Cisterna, Adolfo"'
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
Within the framework of geometric inflation, where the Friedmann equation is modified to incorporate an infinite series of higher curvature corrections, we describe the emergence of a de Sitter inflationary phase near the poles of an arbitrary dynami
Externí odkaz:
http://arxiv.org/abs/2406.10037
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:
Anabalon, Andres, Astefanesei, Dumitru, Cisterna, Adolfo, Izaurieta, Fernando, Oliva, Julio, Quijada, Constanza, Quinzacara, Cristian
We present new, exact, rotating and accelerating solutions within the framework of five-dimensional Einstein-Gauss-Bonnet theory at the Chern-Simons point. The rotating solutions describe black holes characterized by a single rotation parameter, a ma
Externí odkaz:
http://arxiv.org/abs/2404.04691
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
This work outlines a straightforward mechanism for endorsing primary hair into Schwarzschild black holes, resulting in a unique modification within the framework of a special scalar-tensor theory, the so-called beyond Horndeski type. The derived solu
Externí odkaz:
http://arxiv.org/abs/2312.05207
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
Publikováno v:
JHEP11(2023)073
In the realm of lower-dimensional accelerating spacetimes, it is well-established that the presence of domain walls, which are co-dimension one topological defects, is a necessary condition for their construction. We expand the geometric framework by
Externí odkaz:
http://arxiv.org/abs/2309.05559
This paper studies the holographic description of $2+1-$dimensional accelerating black holes. We start by using an ADM decomposition of the coordinates suitable to identify boundary data. As a consequence, the holographic CFT lies in a fixed curved b
Externí odkaz:
http://arxiv.org/abs/2308.00613
In this paper, we construct exact rotating wormholes using Ehlers solution-generating technique. This is based on the Ernst description of four-dimensional, stationary, and axially symmetric solutions of the Einstein-Maxwell theory. We adopt the stat
Externí odkaz:
http://arxiv.org/abs/2306.14541