Effects of mass and self-interaction on nonlinear scalarization of scalar-Gauss-Bonnet black holes

0581894 - FZÚ 2024 RIV US eng J - Journal Article
Pombo, Alexandre Mira - Doneva, D.D.
Effects of mass and self-interaction on nonlinear scalarization of scalar-Gauss-Bonnet black holes.
Physical Review D. Roč. 108, č. 12 (2023), č. článku 124068. ISSN 2470-0010. E-ISSN 2470-0029
R&D Projects: GA ČR(CZ) GM21-16583M
Institutional support: RVO:68378271
Keywords : field theory: scalar: massive * black hole: stability * mass: effect
OECD category: Particles and field physics
Impact factor: 5, year: 2022
Method of publishing: Limited access
https://doi.org/10.1103/PhysRevD.108.124068

It was recently found that, in certain flavors of scalar-Gauss-Bonnet gravity, linearly stable bald black holes can coexist with stable scalarized solutions. The transition between both can be ignited by a large nonlinear perturbation, thus the process was dubbed nonlinear scalarization, and it happens with a jump that leads to interesting astrophysical implications. Generalizing these results to the case of nonzero scalar field potential is important because a massive self-interacting scalar field can have interesting theoretical and observational consequences, e.g., reconcile scalar-Gauss-Bonnet gravity with binary pulsar observation, stabilize black hole solutions, etc. That is why, in the present paper, we address this open problem. We pay special attention to the influence of a scalar field mass and self-interaction on the existence of scalarized phases and the presence of a jump between stable bald and hairy black holes.
Permanent Link: https://hdl.handle.net/11104/0350036