Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Level Spectroscopy: Physical Meaning and Application to the
  Magnetization Plateau Problems   We review the level spectroscopy, which is a powerful method of analyzing the
numerical data with respect to the Berezinskii-Kosterlitz-Thouless quantum
phase transition in one dimension. We focus on its physical meaning and also
its application to the magnetization plateau problems.

23
The categories of this paper are: solv-int
17
The categories of this paper are: q-fin
32
The categories of this paper are: atom-ph
35
The categories of this paper are: mtrl-th
22
The categories of this paper are: chao-dyn
16
The categories of this paper are: stat
20
The categories of this paper are: acc-phys
29
The categories of this paper are: funct-an
7
The categories of this paper are: hep-th
11
The categories of this paper are: hep-lat
36
The categories of this paper are: cmp-lg
6
The categories of this paper are: astro-ph
8
The categories of this paper are: hep-ex
13
The categories of this paper are: quant-ph
37
The categories of this paper are: supr-con
19
The categories of this paper are: eess