Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Comment on: "Aharonov-Bohm effect for bound states from the interaction
  of the magnetic quadrupole moment of a neutral particle with axial fields".
  Phys. Rev. A 101, 032102 (2020)   We analyze recently published results about the Aharonov-Bohm effect for
bound states from the interaction of the magnetic quadrupole moment of a
neutral particle with axial fields. We show that the eigenvalues obtained by
the authors from an arbitrary truncation of the Frobenius power series
correspond to more than one model and, consequently, are unsuitable for drawing
any sound physical conclusion. Besides, the prediction of allowed oscillator
frequencies is a mere consequence of the truncation condition just mentioned.

17
The categories of this paper are: q-fin
4
The categories of this paper are: cond-mat
23
The categories of this paper are: solv-int
5
The categories of this paper are: gr-qc
35
The categories of this paper are: mtrl-th
31
The categories of this paper are: ao-sci
7
The categories of this paper are: hep-th
29
The categories of this paper are: funct-an
0
The categories of this paper are: hep-ph
33
The categories of this paper are: plasm-ph
16
The categories of this paper are: stat
9
The categories of this paper are: nlin
24
The categories of this paper are: dg-ga
22
The categories of this paper are: chao-dyn
36
The categories of this paper are: cmp-lg
25
The categories of this paper are: patt-sol