Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Hawking radiation as tunneling from charged black holes in 0A string
  theory   There has been much work on explaining Hawking radiation as a quantum
tunneling process through horizons. Basically, this intuitive picture requires
the calculation of the imaginary part of the action for outgoing particle. And
two ways are known for achieving this goal: the null-geodesic method and the
Hamilton-Jacobi method. We apply these methods to the charged black holes in 2D
dilaton gravity which is originated from the low energy effective theory of
type 0A string theory. We derive the correct Hawking temperature of the black
holes including the effect of the back reaction of the radiation, and obtain
the entropy by using the 1st law of black hole thermodynamics. For fixed-charge
ensemble, the 0A black holes are free of phase transition and thermodynamically
stable regardless of mass-charge ratio. We show this by interpreting the back
reaction term as the inverse of the heat capacity of the black holes. Finally,
the possibility of the phase transition in the fixed-potential ensemble is
discussed.

23
The categories of this paper are: solv-int
17
The categories of this paper are: q-fin
27
The categories of this paper are: comp-gas
31
The categories of this paper are: ao-sci
33
The categories of this paper are: plasm-ph
4
The categories of this paper are: cond-mat
30
The categories of this paper are: q-alg
9
The categories of this paper are: nlin
21
The categories of this paper are: adap-org
26
The categories of this paper are: bayes-an
36
The categories of this paper are: cmp-lg
37
The categories of this paper are: supr-con
15
The categories of this paper are: nucl-ex
0
The categories of this paper are: hep-ph
22
The categories of this paper are: chao-dyn
32
The categories of this paper are: atom-ph