Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Higher derivative corrections to Kerr black hole thermodynamics   In an effective field theory approach to gravity, the Einstein-Hilbert action
is supplemented by higher derivative terms. In the absence of matter, four
derivative terms can be eliminated by a field redefinition. We use the
Euclidean action to calculate analytically the corrections to thermodynamic
quantities of the Kerr solution arising from terms with six or eight
derivatives. The eight derivative terms make a non-negative correction to the
entropy (at fixed mass and angular momentum) if their coefficients have
appropriate signs. The correction from the six derivative terms does not have a
definite sign.

11
The categories of this paper are: hep-lat
30
The categories of this paper are: q-alg
15
The categories of this paper are: nucl-ex
21
The categories of this paper are: adap-org
35
The categories of this paper are: mtrl-th
14
The categories of this paper are: math-ph
19
The categories of this paper are: eess
1
The categories of this paper are: cs
16
The categories of this paper are: stat
25
The categories of this paper are: patt-sol
23
The categories of this paper are: solv-int
13
The categories of this paper are: quant-ph
29
The categories of this paper are: funct-an
12
The categories of this paper are: nucl-th
10
The categories of this paper are: q-bio
22
The categories of this paper are: chao-dyn