Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Quantum light depolarization: the phase-space perspective   Quantum light depolarization is handled through a master equation obtained by
coupling dispersively the field to a randomly distributed atomic reservoir.
This master equation is solved by transforming it into a quasiprobability
distribution in phase space and the quasiclassical limit is investigated.

29
The categories of this paper are: funct-an
16
The categories of this paper are: stat
14
The categories of this paper are: math-ph
12
The categories of this paper are: nucl-th
2
The categories of this paper are: math
25
The categories of this paper are: patt-sol
27
The categories of this paper are: comp-gas
35
The categories of this paper are: mtrl-th
10
The categories of this paper are: q-bio
4
The categories of this paper are: cond-mat
24
The categories of this paper are: dg-ga
7
The categories of this paper are: hep-th
18
The categories of this paper are: econ
34
The categories of this paper are: chem-ph
32
The categories of this paper are: atom-ph
37
The categories of this paper are: supr-con