Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Rashba precession in quantum wires   The length over which electron spins reverse direction due to the Rashba
effect when injected with an initial polarization along the axes of a quantum
wire is investigated theoretically. A soft wall confinement of the wire
renormalizes the spin-orbit parameter (and the effective mass) stronger than
hard walls. Electron-electron interactions enhance the Rashba precession while
evidence is found that the coupling between transport channels may suppress it.

32
The categories of this paper are: atom-ph
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The categories of this paper are: bayes-an
0
The categories of this paper are: hep-ph
16
The categories of this paper are: stat
33
The categories of this paper are: plasm-ph
12
The categories of this paper are: nucl-th
17
The categories of this paper are: q-fin
5
The categories of this paper are: gr-qc
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The categories of this paper are: funct-an
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The categories of this paper are: acc-phys
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The categories of this paper are: nucl-ex
13
The categories of this paper are: quant-ph
1
The categories of this paper are: cs
34
The categories of this paper are: chem-ph
7
The categories of this paper are: hep-th
22
The categories of this paper are: chao-dyn