Scalarized Extremal Black Holes in the Einstein–Maxwell-Scalar Theory with Two U(1) Fields
We study scalarized extremal black holes in the Einstein–Maxwell-scalar (EMS) theory with two different scalar couplings to two U(1) fields. This theory is inspired by the dyonic EMS theory. Two scalarized extremal black holes are found with constant scalar hair. We confirm that these are precisely obtained from the extremal scalarization and entropy function approaches. This may imply that it is not easy to find extremal black holes with primary scalar hair.
Authors
- Xiao Yan Chew (ORCID: https://orcid.org/0000-0003-2140-9430)
- Yun Soo Myung
Institutions
- Sogang University (KR)
- Jiangsu University of Science and Technology (CN)
Publication Details
- Journal
- Universe
- Published
- 2026-09-04
- DOI
- https://doi.org/10.3390/universe12090270
- Primary Topic
- Black Holes and Theoretical Physics
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- National Natural Science Foundation of China
- National Research Foundation of Korea