Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Issues pertaining to D'yakonov-Perel' spin relaxation in quantum wire
  channels   We elucidate the origin and nature of the D'yakonov-Perel' spin relaxation in
a quantum wire structure, showing (analytically) that there are three necessary
conditions for it to exist: (i) transport must be multi-channeled, (ii) there
must be a Rashba spin orbit interaction in the wire, and (iii) there must also
be a Dresselhaus spin orbit interaction. Therefore, the only effective way to
completely eliminate the D'yakonov-Perel' relaxation in compound semiconductor
channels with structural and bulk inversion asymmetry is to ensure strictly
single channeled transport. In view of that, recent proposals in the literature
that advocate using multi-channeled quantum wires for spin transistors appear
ill-advised.

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The categories of this paper are: astro-ph
11
The categories of this paper are: hep-lat
37
The categories of this paper are: supr-con
26
The categories of this paper are: bayes-an
33
The categories of this paper are: plasm-ph
1
The categories of this paper are: cs
14
The categories of this paper are: math-ph
0
The categories of this paper are: hep-ph
34
The categories of this paper are: chem-ph
28
The categories of this paper are: alg-geom
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The categories of this paper are: patt-sol
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The categories of this paper are: gr-qc
31
The categories of this paper are: ao-sci
12
The categories of this paper are: nucl-th
35
The categories of this paper are: mtrl-th
16
The categories of this paper are: stat