Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Generation of fan-states of radiation field in a cavity   A scheme of generating recently introduced fan-states | \alpha, 2k>_F (\alpha
is complex, k=1,2,3,...) is proposed basing on a \Lambda-type atom-cavity field
interaction. We show that with suitable atomic preparations and measurements a
passage of a sequence of N atoms through a cavity may transform an initial
field coherent state | \alpha> to a fan-state | \alpha, 2k>_F with k=2^{N-2}.

11
The categories of this paper are: hep-lat
0
The categories of this paper are: hep-ph
6
The categories of this paper are: astro-ph
8
The categories of this paper are: hep-ex
33
The categories of this paper are: plasm-ph
23
The categories of this paper are: solv-int
17
The categories of this paper are: q-fin
16
The categories of this paper are: stat
26
The categories of this paper are: bayes-an
9
The categories of this paper are: nlin
25
The categories of this paper are: patt-sol
5
The categories of this paper are: gr-qc
7
The categories of this paper are: hep-th
1
The categories of this paper are: cs
18
The categories of this paper are: econ
34
The categories of this paper are: chem-ph