Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Quantum gravitational wave function for the interior of a black hole and
  the generalized uncertainty principle   We investigate the internal structures of a Schwarzschild black hole by
solving the Wheeler-DeWitt equation. The generic bounded wave function has a
bouncing point around $r \simeq M$, where $M$ is the black hole mass. Due to
this quantum bouncing, there appears an ambiguity to define the arrow of time.
If we introduce two arrows of time, one can then interpret that two classical
spacetime is annihilated around the bouncing point. Finally, we provide a
conceptual explanation based on the generalized uncertainty principle.

18
The categories of this paper are: econ
3
The categories of this paper are: physics
29
The categories of this paper are: funct-an
15
The categories of this paper are: nucl-ex
9
The categories of this paper are: nlin
20
The categories of this paper are: acc-phys
2
The categories of this paper are: math
17
The categories of this paper are: q-fin
22
The categories of this paper are: chao-dyn
34
The categories of this paper are: chem-ph
1
The categories of this paper are: cs
14
The categories of this paper are: math-ph
27
The categories of this paper are: comp-gas
37
The categories of this paper are: supr-con
0
The categories of this paper are: hep-ph
21
The categories of this paper are: adap-org