Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Solution of Cross-Kerr Interaction Combined with Parametric
  Amplification   We present a full operator approach to treatment of the cross-Kerr
interaction combined with parametric amplification. It is shown that this
problem can be exactly integrated using the method of higher-order operators.
While the initial basis is infinite-dimensional, an orthogonal transformation
can reduce the problem exactly into a six-dimensional basis which can be
integrated conveniently.

32
The categories of this paper are: atom-ph
3
The categories of this paper are: physics
21
The categories of this paper are: adap-org
8
The categories of this paper are: hep-ex
37
The categories of this paper are: supr-con
17
The categories of this paper are: q-fin
18
The categories of this paper are: econ
0
The categories of this paper are: hep-ph
19
The categories of this paper are: eess
23
The categories of this paper are: solv-int
26
The categories of this paper are: bayes-an
10
The categories of this paper are: q-bio
15
The categories of this paper are: nucl-ex
16
The categories of this paper are: stat
36
The categories of this paper are: cmp-lg
9
The categories of this paper are: nlin