Journal
EUROPEAN PHYSICAL JOURNAL C
Volume 80, Issue 10, Pages -Publisher
SPRINGER
DOI: 10.1140/epjc/s10052-020-08511-9
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Funding
- National Natural Science Foundation of China [11875151, 11522541, 11675064]
- Fundamental Research Funds for the Central Universities [lzujbky-2019-it21]
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Recent researches of the novel 4D Einstein-Gauss-Bonnet (EGB) gravity have attracted great attention. In this paper, we investigate the validity of the weak cosmic censorship conjecture for a novel 4D charged EGB black hole with test charged scalar field and test charged particle respectively. For the test charged field scattering process, we find that both extremal and near-extremal black holes cannot be overcharged. For the test charged particle injection, to first order, an extremal black hole cannot be overcharged while a near-extremal 4D charged EGB black hole can be destroyed. To second order, however, both extremal and near-extremal 4D charged EGB black holes can be overcharged for positive Gauss-Bonnet coupling constant; for negative Gauss-Bonnet coupling constant, an extremal black hole cannot be overcharged and the validity of the weak cosmic censorship conjecture for a near-extremal black hole depends on the Gauss-Bonnet coupling constant.
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