Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Soliton vacuum energies and the CP(1) model   The quantum properties of solitons at one loop can be related to phase shifts
of waves on the soliton background. These can be combined with heat kernel
methods to calculate various parameters. The vacuum energy of a CP(1) soliton
in 2+1 dimensions is calculated as an example.

11
The categories of this paper are: hep-lat
0
The categories of this paper are: hep-ph
33
The categories of this paper are: plasm-ph
23
The categories of this paper are: solv-int
34
The categories of this paper are: chem-ph
28
The categories of this paper are: alg-geom
5
The categories of this paper are: gr-qc
29
The categories of this paper are: funct-an
2
The categories of this paper are: math
9
The categories of this paper are: nlin
31
The categories of this paper are: ao-sci
3
The categories of this paper are: physics
19
The categories of this paper are: eess
12
The categories of this paper are: nucl-th
15
The categories of this paper are: nucl-ex
32
The categories of this paper are: atom-ph