Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Black Hole Entropy and Renormalization   Using a new regulator, we examine 't Hooft's approach for evaluating black
hole entropy through a statistical-mechanical counting of states for a scalar
field propagating outside the event horizon. We find that this calculation
yields precisely the one-loop renormalization of the standard
Bekenstein-Hawking formula, $S={\Cal A}/(4G)$. Thus our result provides
evidence confirming a suggestion by Susskind and Uglum regarding black hole
entropy.

14
The categories of this paper are: math-ph
34
The categories of this paper are: chem-ph
25
The categories of this paper are: patt-sol
20
The categories of this paper are: acc-phys
30
The categories of this paper are: q-alg
18
The categories of this paper are: econ
15
The categories of this paper are: nucl-ex
11
The categories of this paper are: hep-lat
29
The categories of this paper are: funct-an
19
The categories of this paper are: eess
3
The categories of this paper are: physics
32
The categories of this paper are: atom-ph
1
The categories of this paper are: cs
16
The categories of this paper are: stat
37
The categories of this paper are: supr-con
31
The categories of this paper are: ao-sci