Regular Article - Theoretical Physics
Horizon curvature and spacetime structure influences on black hole scalarization
Center for Gravitation and Cosmology, College of Physical Science and Technology, Yangzhou University, 225009, Yangzhou, China
2 School of Aeronautics and Astronautics, Shanghai Jiao Tong University, 200240, Shanghai, China
3 Physics Division, National Technical University of Athens, Zografou Campus, 15780, Athens, Greece
Accepted: 7 September 2021
Published online: 22 September 2021
Black hole spontaneous scalarization has been attracting more and more attention as it circumvents the well-known no-hair theorems. In this work, we study the scalarization in Einstein–scalar-Gauss–Bonnet theory with a probe scalar field in a black hole background with different curvatures. We first probe the signal of black hole scalarization with positive curvature in different spacetimes. The scalar field in AdS spacetime could be formed easier than that in flat case. Then, we investigate the scalar field around AdS black holes with negative and zero curvatures. Comparing with negative and zero cases, the scalar field near AdS black hole with positive curvature could be much easier to emerge. And in negative curvature case, the scalar field is the most difficult to be bounded near the horizon.
© The Author(s) 2021
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