Instability of regularized 4D charged Einstein-Gauss-Bonnet de-Sitter black holes *
نویسندگان
چکیده
We studied the instability of regularized 4D charged Einstein-Gauss-Bonnet de-Sitter black holes under scalar perturbations. The unstable modes satisfy superradiant condition, but not all satisfying condition are unstable. occurs when cosmological constant is small and hole charge too large. Gauss-Bonnet coupling makes more both small, stable
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ژورنال
عنوان ژورنال: Chinese Physics C
سال: 2021
ISSN: ['1674-1137', '2058-6132']
DOI: https://doi.org/10.1088/1674-1137/abcd2d