Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Hawking Radiation as Tunnelling in Static Black Holes   Hawking radiation can usefully be viewed as a semi-classical tunnelling
process that originates at the black hole horizon. The conservation of energy
implies the effect of self-gravitation. For a static black hole, a generalized
Painleve coordinate system is introduced, and Hawking radiation as tunnelling
under the effect of self-gravitation is investigated. The corrected radiation
is consistent with the underlying unitary theory.

7
The categories of this paper are: hep-th
26
The categories of this paper are: bayes-an
11
The categories of this paper are: hep-lat
17
The categories of this paper are: q-fin
31
The categories of this paper are: ao-sci
15
The categories of this paper are: nucl-ex
12
The categories of this paper are: nucl-th
4
The categories of this paper are: cond-mat
23
The categories of this paper are: solv-int
3
The categories of this paper are: physics
10
The categories of this paper are: q-bio
30
The categories of this paper are: q-alg
18
The categories of this paper are: econ
29
The categories of this paper are: funct-an
34
The categories of this paper are: chem-ph
0
The categories of this paper are: hep-ph