Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Defect Formation Through Boson Condensation in Quantum Field Theory   Kinks, vortices, monopoles are extended objects, or defects, of quantum
origin with topologically non-trivial properties and macroscopic behavior. They
are described in Quantum Field Theory in terms of non-homogeneous boson
condensation. I will review the related QFT formalism, the spontaneous
breakdown of symmetry framework in which the defects appear and discuss finite
temperature effects, also in connection with phase transition problematics.

24
The categories of this paper are: dg-ga
2
The categories of this paper are: math
25
The categories of this paper are: patt-sol
9
The categories of this paper are: nlin
32
The categories of this paper are: atom-ph
16
The categories of this paper are: stat
36
The categories of this paper are: cmp-lg
14
The categories of this paper are: math-ph
15
The categories of this paper are: nucl-ex
12
The categories of this paper are: nucl-th
6
The categories of this paper are: astro-ph
19
The categories of this paper are: eess
0
The categories of this paper are: hep-ph
13
The categories of this paper are: quant-ph
27
The categories of this paper are: comp-gas
11
The categories of this paper are: hep-lat