Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Many Body Theory for Quartets, Trions, and Pairs in Low Density
  Multi-Component Fermi-Systems   A selfconsistent many body approach for the description of gases with
quartets, trions, and pairs is presented. Applications to 3D Fermi systems at
low density are discussed.

20
The categories of this paper are: acc-phys
18
The categories of this paper are: econ
11
The categories of this paper are: hep-lat
30
The categories of this paper are: q-alg
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The categories of this paper are: eess
28
The categories of this paper are: alg-geom
32
The categories of this paper are: atom-ph
13
The categories of this paper are: quant-ph
23
The categories of this paper are: solv-int
0
The categories of this paper are: hep-ph
37
The categories of this paper are: supr-con
1
The categories of this paper are: cs
31
The categories of this paper are: ao-sci
34
The categories of this paper are: chem-ph
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The categories of this paper are: q-fin
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The categories of this paper are: nucl-ex