Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Superradiance of charged black holes in Einstein-Gauss-Bonnet Gravity   In this paper we show that electrically charged black holes in
Einstein-Gauss-Bonnet gravity suffer from a superradiant instability. It is
triggered by a charged scalar field that fulfills Dirichlet boundary conditions
at a mirror located outside the horizon. As in General Relativity, the unstable
modes exist provided the mirror is located beyond a critical radius, making the
instability a long wavelength one. We explore the effects of the Gauss-Bonnet
corrections on the critical radius and find evidence that the critical radius
decreases as the Gauss-Bonnet coupling $\alpha$ increases. Due to the, up to
date, lack of an analytic rotating solution for Einstein-Gauss-Bonnet theory,
this is the first example of a superradiant instability in the presence of
higher curvature terms in the action.

20
The categories of this paper are: acc-phys
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The categories of this paper are: solv-int
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The categories of this paper are: eess
37
The categories of this paper are: supr-con
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The categories of this paper are: hep-lat
27
The categories of this paper are: comp-gas
33
The categories of this paper are: plasm-ph
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The categories of this paper are: adap-org
10
The categories of this paper are: q-bio
34
The categories of this paper are: chem-ph
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The categories of this paper are: econ
26
The categories of this paper are: bayes-an
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The categories of this paper are: quant-ph
32
The categories of this paper are: atom-ph
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The categories of this paper are: ao-sci
6
The categories of this paper are: astro-ph