Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Quantum Gravity and Black Hole Entropy   The basic features of a quantum field theory which is Poincar\'e invariant,
gauge invariant, finite and unitary to all orders of perturbation theory are
reviewed. Quantum gravity is finite and unitary to all orders of perturbation
theory. The Bekenstein-Hawking entropy formula for a black hole is investigated
in a conical Rindler space approximation to a black hole event horizon. A
renormalization of the gravitational coupling constant is performed leading to
a finite Bekenstein-Hawking entropy at the horizon.

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The categories of this paper are: q-alg
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The categories of this paper are: ao-sci
21
The categories of this paper are: adap-org
22
The categories of this paper are: chao-dyn
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The categories of this paper are: comp-gas
19
The categories of this paper are: eess
11
The categories of this paper are: hep-lat
15
The categories of this paper are: nucl-ex
10
The categories of this paper are: q-bio
12
The categories of this paper are: nucl-th
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The categories of this paper are: mtrl-th
4
The categories of this paper are: cond-mat
13
The categories of this paper are: quant-ph
20
The categories of this paper are: acc-phys
3
The categories of this paper are: physics
17
The categories of this paper are: q-fin