Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: An Approximate Solution of the Dynamical Casimir Effect in a Cavity with
  a Two-Level Atom   In this paper we treat the so-called dynamical Casimir effect in a cavity
with a two--level atom and give an analytic approximate solution under the
general setting. The aim of the paper is to show another approach based on
Mathematical Physics to the paper [arXiv : 1112.0523 (quant-ph)] by A. V.
Dodonov and V. V. Dodonov. We believe that our method is simple and beautiful.

30
The categories of this paper are: q-alg
25
The categories of this paper are: patt-sol
24
The categories of this paper are: dg-ga
15
The categories of this paper are: nucl-ex
32
The categories of this paper are: atom-ph
9
The categories of this paper are: nlin
5
The categories of this paper are: gr-qc
19
The categories of this paper are: eess
37
The categories of this paper are: supr-con
0
The categories of this paper are: hep-ph
18
The categories of this paper are: econ
27
The categories of this paper are: comp-gas
1
The categories of this paper are: cs
7
The categories of this paper are: hep-th
33
The categories of this paper are: plasm-ph
21
The categories of this paper are: adap-org