Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Quantum entanglement as an interpretation of bosonic character in
  composite two-particle systems   We consider a composite particle formed by two fermions or two bosons. We
discover that composite behavior is deeply related to the quantum entanglement
between the constituent particles. By analyzing the properties of creation and
annihilation operators, we show that bosonic character emerges if the
constituent particles become strongly entangled. Such a connection is
demonstrated explicitly in a class of two-particle wave functions.

21
The categories of this paper are: adap-org
31
The categories of this paper are: ao-sci
29
The categories of this paper are: funct-an
17
The categories of this paper are: q-fin
8
The categories of this paper are: hep-ex
23
The categories of this paper are: solv-int
24
The categories of this paper are: dg-ga
35
The categories of this paper are: mtrl-th
6
The categories of this paper are: astro-ph
2
The categories of this paper are: math
19
The categories of this paper are: eess
34
The categories of this paper are: chem-ph
0
The categories of this paper are: hep-ph
15
The categories of this paper are: nucl-ex
27
The categories of this paper are: comp-gas
12
The categories of this paper are: nucl-th