Zobrazeno 1 - 10
of 8 090
pro vyhledávání: '"A Bronnikov"'
This work investigates whether phantom scalar fields combined with nonlinear electrodynamics (NED) can serve as sources for generalized Ellis-Bronnikov wormhole (GEB) spacetimes. This generalization of the Ellis-Bronnikov metric holds significant rel
Externí odkaz:
http://arxiv.org/abs/2410.11147
Publikováno v:
Phys. Rev. D 109, 124051 (2024)
We consider slowly rotating Ellis-Bronnikov wormholes and investigate their radial perturbations ($\mathrm{l}=0$), expanding up to second order in rotation. We present the detailed derivations in the general case, including symmetric and non-symmetri
Externí odkaz:
http://arxiv.org/abs/2403.08387
Autor:
Khoo, Fech Scen, Azad, Bahareh, Blázquez-Salcedo, Jose Luis, González-Romero, Luis Manuel, Kleihaus, Burkhard, Kunz, Jutta, Navarro-Lérida, Francisco
Publikováno v:
Phys. Rev. D 109, 084013 (2024)
We present for the first time a study of the quasinormal modes of rapidly rotating Ellis-Bronnikov wormholes in General Relativity. We compute the spectrum of the wormholes using a spectral decomposition of the metric perturbations on a numerical bac
Externí odkaz:
http://arxiv.org/abs/2401.02898
Gravitational lensing properties of supermassive astrophysical objects, such as black holes and wormholes, provide the realistic way for their discovering and investigating. Various lensing effects in a wormhole spacetime have been widely studied in
Externí odkaz:
http://arxiv.org/abs/2308.02268
Autor:
Mitra, Antariksha, Ghosh, Suman
We examine the quasi normal modes of Ellis-Bronnikov wormholes embedded in a warped five dimensional braneworld background and compare with it's four dimensional counterpart. These scalar quasi normal frequencies are obtained using the WKB formula, P
Externí odkaz:
http://arxiv.org/abs/2310.17479
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.
The gravitational lensing effect at higher order under weak-field approximation is believed to be important to distinguish black holes and other compact objects such as wormholes. The deflection angle of a generic wormhole is difficult to solve analy
Externí odkaz:
http://arxiv.org/abs/2302.13704
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.
Autor:
David Senjaya
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 84, Iss 6, Pp 1-8 (2024)
Abstract In this letter, we investigate behaviour of massive and massless scalar field that is represented by the covariant Klein–Gordon equation with Bocharova–Bronnikov–Melnikov–Bekenstein (BBMB) black hole background. We successfully solve
Externí odkaz:
https://doaj.org/article/d5553bc5a60e45f1b979d466fb4c199b
We investigate the radial perturbations of Ellis-Bronnikov wormholes ($\mathrm{l}=0$) in a slowly rotating background expanded up to second order in rotation. We find indications that simple wormhole solutions such as Ellis-Bronnikov in General Relat
Externí odkaz:
http://arxiv.org/abs/2301.05243