Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Rustam Ibadov"'
Autor:
Kirill A. Bronnikov, Sergei V. Bolokhov, Milena V. Skvortsova, Rustam Ibadov, Feruza Y. Shaymanova
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 84, Iss 10, Pp 1-20 (2024)
Abstract We study the behavior of static, spherically symmetric solutions to the field equations of scalar–tensor theories (STT) of gravity belonging to the Bergmann–Wagoner–Nordtvedt class, in the presence of an electric and/or magnetic charge
Externí odkaz:
https://doaj.org/article/e88c4fe8689e4e0cabaa75a29beee1c0
Publikováno v:
Symmetry, Vol 13, Iss 1, p 89 (2021)
We construct scalarized wormholes with a NUT charge in higher curvature theories. We consider both Einstein-scalar-Gauss-Bonnet and Einstein-scalar-Chern-Simons theories, following Brihaye, Herdeiro and Radu, who recently studied spontaneously scalar
Externí odkaz:
https://doaj.org/article/b35ba802d553488f97df8f7e10ea2761
It is shown that an arbitrary static, spherically symmetric metric can be presented as an exact solution of a scalar-tensor theory (STT) of gravity with certain nonminimal coupling function $f(\phi)$ and potential $U(\phi)$. The scalar field in this
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1706babfc674b6f41f0206d48db72be1
http://arxiv.org/abs/2212.04544
http://arxiv.org/abs/2212.04544
Autor:
Kodir Badalov, Rustam Ibadov
Publikováno v:
Theoretical & Applied Science. 90:59-62
We present wormholes with a Newman-Unti-Tamburino (NUT) charge that arise in certain higher curvature theories, where a scalar field is coupled to a higher curvature invariant. For the invariants we employ i) a Gauss-Bonnet term and ii) a Chern-Simon
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::703a4fc28366dbcdddd5775849719f8c
Publikováno v:
Physical Review D. 102
We construct wormholes in Einstein-scalar-Gauss-Bonnet theories with a potential for the scalar field that includes a mass term and self-interaction terms. By varying the Gauss-Bonnet coupling constant we delimit the domain of existence of wormholes
Publikováno v:
Physics Letters B. 686:298-306
At finite weak mixing angle the sphaleron solution of Weinberg-Salam theory can be endowed with angular momentum proportional to the electric charge. Here we show, that this holds also for sphaleron-antisphaleron systems such as pairs, chains and vor
Publikováno v:
Physics Letters B. 663(1-2):136-140
We present new classical solutions of Einstein-Yang-Mills-Higgs theory, representing gravitating sphaleron-antisphaleron pair, chain and vortex ring solutions. In these static axially symmetric solutions, the Higgs field vanishes on isolated points o
Publikováno v:
Gravitation and Cosmology. 14:28-37
We consider dyons and electrically charged monopole-antimonopole pairs in Einstein-Yang-Mills-Higgs theory. In the presence of an electric charge, bifurcations arise and new branches of solutions appear. For large values of the electric charge, spher
We consider Lorentzian wormholes supported by a phantom field and threaded by non-trivial Yang-Mills fields, which may be regarded as hair on the Ellis wormhole. Like the Bartnik-McKinnon solutions and their associated hairy black holes, these hairy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f5b870cd327f26d89c91188ccb35dd49