Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Sub-Doppler spectra of sodium $D$ lines in a wide range of magnetic
  field: theoretical study   We compute the interaction of a sodium vapor with a static magnetic field
ranging from 0 up to 1 Tesla, which allows to obtain the behavior of all Zeeman
transitions as a function of the magnetic field for any polarization of
incident laser radiation: $\pi, \sigma^\pm$. We use these results combined with
a Fabry-P\'erot microcavity model to describe the transmitted and reflected
signal of a sodium vapor confined in a nanometric-thin cell. This allows us to
present for the first time high resolution absorption spectra, and provide a
complete description of the Zeeman transitions, along with some important
peculiarities such as the appearance of guiding transitions and
magnetically-induced circular dichroism. The obtained theoretical results can
be used in the upcoming experiments with sodium vapor nanocells.

31
The categories of this paper are: ao-sci
28
The categories of this paper are: alg-geom
7
The categories of this paper are: hep-th
34
The categories of this paper are: chem-ph
9
The categories of this paper are: nlin
16
The categories of this paper are: stat
37
The categories of this paper are: supr-con
1
The categories of this paper are: cs
29
The categories of this paper are: funct-an
32
The categories of this paper are: atom-ph
10
The categories of this paper are: q-bio
21
The categories of this paper are: adap-org
15
The categories of this paper are: nucl-ex
23
The categories of this paper are: solv-int
12
The categories of this paper are: nucl-th
24
The categories of this paper are: dg-ga