Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Controllable quantum spin precession by Aharonov-Casher phase in
  conducting ring   We investigate quantum spin transport in a structure of conducting ring,
embedded in textured electric field, with two leads, and obtain an exact
solution for the problem. The spin precession induced by the Aharonov-Casher
phase is studied. It is shown that the spin-polarized current and its
polarizability can be controlled by the electric field. As a result the
polarizability is a function of the geometric phase which originates from the
spin-orbital interaction in the ring.
  72.25.-b, 03.65.Vf

2
The categories of this paper are: math
10
The categories of this paper are: q-bio
8
The categories of this paper are: hep-ex
29
The categories of this paper are: funct-an
13
The categories of this paper are: quant-ph
16
The categories of this paper are: stat
11
The categories of this paper are: hep-lat
1
The categories of this paper are: cs
30
The categories of this paper are: q-alg
3
The categories of this paper are: physics
18
The categories of this paper are: econ
26
The categories of this paper are: bayes-an
12
The categories of this paper are: nucl-th
14
The categories of this paper are: math-ph
6
The categories of this paper are: astro-ph
21
The categories of this paper are: adap-org