Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Polarized Electric Current in Semiclassical Transport with Spin-Orbit
  Interaction   Semiclassical solutions of two-dimensional Schrodinger equation with
spin-orbit interaction and smooth potential are considered. In the leading
order, spin polarization is in-plane and follows the evolution of the electron
momentum for a given subband. Out-of-plane spin polarization appears as a
quantum correction, for which an explicit expression is obtained. We
demonstrate how spin-polarized currents can be achieved with the help of a
barrier or quantum point contact open for transmission only in the lower
subband.

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The categories of this paper are: acc-phys
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The categories of this paper are: chem-ph
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The categories of this paper are: alg-geom
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The categories of this paper are: chao-dyn
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The categories of this paper are: solv-int
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The categories of this paper are: eess
33
The categories of this paper are: plasm-ph
9
The categories of this paper are: nlin
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The categories of this paper are: math-ph
1
The categories of this paper are: cs
5
The categories of this paper are: gr-qc
12
The categories of this paper are: nucl-th
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The categories of this paper are: mtrl-th
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The categories of this paper are: atom-ph
6
The categories of this paper are: astro-ph
11
The categories of this paper are: hep-lat