Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Phase structure analysis of CP(N-1) model using Tensor renormalization
  group   The phase structure of the lattice CP($N-1$) model in two dimensions is
analyzed by the tensor renormalization group (TRG) method. We focus on the case
$N=2$ and compare the numerical result of the TRG method with that of the
strong-coupling analysis in the presence of the $\theta$ term and investigate
the nature of the phase transition at $\theta=\pi$.

26
The categories of this paper are: bayes-an
30
The categories of this paper are: q-alg
4
The categories of this paper are: cond-mat
32
The categories of this paper are: atom-ph
1
The categories of this paper are: cs
15
The categories of this paper are: nucl-ex
37
The categories of this paper are: supr-con
7
The categories of this paper are: hep-th
18
The categories of this paper are: econ
2
The categories of this paper are: math
35
The categories of this paper are: mtrl-th
20
The categories of this paper are: acc-phys
9
The categories of this paper are: nlin
3
The categories of this paper are: physics
28
The categories of this paper are: alg-geom
10
The categories of this paper are: q-bio