Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Classical and quantum N=2 supersymmetric black holes   We use heterotic/type-II prepotentials to study quantum/classical black holes
with half the $N=2, D=4$ supersymmetries unbroken. We show that, in the case of
heterotic string compactifications, the perturbatively corrected entropy
formula is given by the tree-level entropy formula with the tree-level coupling
constant replaced by the perturbative coupling constant. In the case of type-II
compactifications, we display a new entropy/area formula associated with
axion-free black-hole solutions, which depends on the electric and magnetic
charges as well as on certain topological data of Calabi--Yau three-folds,
namely the intersection numbers, the second Chern class and the Euler number of
the three-fold. We show that, for both heterotic and type-II theories, there is
the possibility to relax the usual requirement of the non-vanishing of some of
the charges and still have a finite entropy.

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The categories of this paper are: gr-qc
22
The categories of this paper are: chao-dyn
3
The categories of this paper are: physics
20
The categories of this paper are: acc-phys
12
The categories of this paper are: nucl-th
15
The categories of this paper are: nucl-ex
0
The categories of this paper are: hep-ph
6
The categories of this paper are: astro-ph
37
The categories of this paper are: supr-con
28
The categories of this paper are: alg-geom
23
The categories of this paper are: solv-int
10
The categories of this paper are: q-bio
1
The categories of this paper are: cs
26
The categories of this paper are: bayes-an
2
The categories of this paper are: math
19
The categories of this paper are: eess