Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Tunneling effect of the spin-2 Bose condensate driven by external
  magnetic fields   In this paper, we have studied tunneling effect of the spin-2 Bose condensate
driven by external magnetic field. We find that the population transfers among
spin-0 and spin-$\pm1$, spin-0 and spin-$\pm2$ exhibit the step structure under
the external cosinusoidal magnetic field respectively, but there do not exist
step structure among spin-$\pm1$ and spin-$\pm2$. The tunneling current among
spin-$\pm1$ and spin-$\pm2$ may exhibit periodically oscillation behavior, but
among spin-0 and spin-$\pm1$, spin-0 and spin-$\pm2$, the tunneling currents
exhibit irregular oscillation behavior.

5
The categories of this paper are: gr-qc
15
The categories of this paper are: nucl-ex
14
The categories of this paper are: math-ph
26
The categories of this paper are: bayes-an
0
The categories of this paper are: hep-ph
35
The categories of this paper are: mtrl-th
31
The categories of this paper are: ao-sci
33
The categories of this paper are: plasm-ph
19
The categories of this paper are: eess
8
The categories of this paper are: hep-ex
32
The categories of this paper are: atom-ph
2
The categories of this paper are: math
20
The categories of this paper are: acc-phys
17
The categories of this paper are: q-fin
12
The categories of this paper are: nucl-th
10
The categories of this paper are: q-bio