Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Tune-out wavelengths for potassium   The five longest tune-out wavelengths for the potassium atom are determined
using a relativistic structure model which treats the atom as consisting of a
single valence electron moving outside a closed shell core. The importance of
various terms in the dynamic polarizability in the vicinity of the $4p_J$,
$5p_J$ and $6p_J$ transitions are discussed.

9
The categories of this paper are: nlin
20
The categories of this paper are: acc-phys
5
The categories of this paper are: gr-qc
8
The categories of this paper are: hep-ex
26
The categories of this paper are: bayes-an
25
The categories of this paper are: patt-sol
22
The categories of this paper are: chao-dyn
34
The categories of this paper are: chem-ph
30
The categories of this paper are: q-alg
21
The categories of this paper are: adap-org
32
The categories of this paper are: atom-ph
37
The categories of this paper are: supr-con
15
The categories of this paper are: nucl-ex
18
The categories of this paper are: econ
24
The categories of this paper are: dg-ga
1
The categories of this paper are: cs