Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Spin orbit interaction and zitterbewegung in symmetric wells   Recently, we have introduced a novel inter-subband-induced spin-orbit (s-o)
coupling [Phys. Rev. Lett. 99, 076603 (2007); cond-mat/0607218] arising in
\textit{symmetric} wells with at least two subbands. This new s-o coupling
gives rise to an usual zitterbewegung -- i.e. the semiconductor analog to the
relativistic trembling motion of electrons -- with cycloidal motion without
magnetic fields. Here we complement these findings by explicitly deriving
expressions for the corresponding zitterbewegung in spin space.

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The categories of this paper are: bayes-an
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The categories of this paper are: hep-lat
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The categories of this paper are: stat
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The categories of this paper are: alg-geom
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The categories of this paper are: nucl-ex
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The categories of this paper are: chem-ph
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The categories of this paper are: econ
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The categories of this paper are: atom-ph
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The categories of this paper are: dg-ga
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The categories of this paper are: hep-th
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The categories of this paper are: ao-sci
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The categories of this paper are: q-alg
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The categories of this paper are: acc-phys
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The categories of this paper are: mtrl-th
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The categories of this paper are: hep-ph
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The categories of this paper are: math-ph