Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Bound state and persistent currents in the presence of torsion and
  Rashba spin-orbit coupling   We study a model of an electron on a cylindrical surface, which is coupled to
the torsion field due to a dislocation along the axis of the cylinder. We
discuss the effect of this torsion field on the energy spectrum of the
electrons and analytically calculate persistent currents in the presence of
Rashba spin-orbit coupling. We also analyze bound state energy spectra in
presence of Rashba spin-orbit interaction. Our results show that the presence
of the torsional field due to the dislocation significantly modifies the energy
spectrum of the system. The dislocation induced persistent spin current in this
system is calculated, and we find a correspondence between the dislocation
mediated spin current and the azimuthal spin current.

16
The categories of this paper are: stat
13
The categories of this paper are: quant-ph
18
The categories of this paper are: econ
34
The categories of this paper are: chem-ph
21
The categories of this paper are: adap-org
28
The categories of this paper are: alg-geom
30
The categories of this paper are: q-alg
5
The categories of this paper are: gr-qc
24
The categories of this paper are: dg-ga
7
The categories of this paper are: hep-th
3
The categories of this paper are: physics
37
The categories of this paper are: supr-con
10
The categories of this paper are: q-bio
22
The categories of this paper are: chao-dyn
2
The categories of this paper are: math
32
The categories of this paper are: atom-ph