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pro vyhledávání: '"A. Pallikaris"'
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 study the cosmology of the complete quadratic (in torsion and nonmetricity) metric-affine gravity. Namely, we add to the scalar-curvature gravitational Lagrangian, the 17 independent quadratic (parity-even and parity-odd) torsion and nonmetricity
Externí odkaz:
http://arxiv.org/abs/2404.19498
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
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
We formulate a bi-Connection Theory of Gravity whose Gravitational action consists of a recently defined mutual curvature scalar. Namely, we build a gravitational theory consisting of one metric and two affine connections, in a Metric-Affine Gravity
Externí odkaz:
http://arxiv.org/abs/2305.18537
Autor:
José Barrientos, Adolfo Cisterna, Ivan Kolář, Keanu Müller, Marcelo Oyarzo, Konstantinos Pallikaris
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 84, Iss 7, Pp 1-29 (2024)
Abstract 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 Harr
Externí odkaz:
https://doaj.org/article/6f9d01aefd8a412ea82a9372c79d81fc
Publikováno v:
JCAP05(2023)037
In this work we describe metric-affine theories anew by making a change of field variables. A series of equivalent frameworks is presented and identifications are worked out in detail. The advantage of applying the new frameworks is that any MAG theo
Externí odkaz:
http://arxiv.org/abs/2301.11364
Publikováno v:
Phys. Rev. D 104, 104067 (2021)
We provide a ``user-friendly'' algorithm to systematically and rapidly obtain exact planar black hole solutions in the Einstein-Maxwell theory deformed by the most general shift- and reflection-symmetric Horndeski sector where the usual Galileon is r
Externí odkaz:
http://arxiv.org/abs/2106.07458
Publikováno v:
Clinical Ophthalmology, Vol Volume 17, Pp 1661-1674 (2023)
Zoi Kapsala,1 Aristofanis Pallikaris,1,2 Miltiadis K Tsilimbaris1,2 1Department of Neurology and Sensory Organs, Medical School, University of Crete, Heraklion, Greece; 2Vardinoyiannion Eye Institute of Crete, Medical School, University of Crete, Her
Externí odkaz:
https://doaj.org/article/92eb8d43845d49a1b1c144623791897f