Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Electron-phonon scattering in topological insulators   We formulate and apply a theory of electron-phonon interactions for the
surface state of a strong topological insulator. Phonons are modelled using an
isotropic elastic continuum theory with stress-free boundary conditions and
interact with the Dirac surface fermions via the deformation potential. We
discuss the temperature dependence of the quasi-particle lifetime in
photoemission and of the surface resistivity.

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The categories of this paper are: comp-gas
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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: chem-ph
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The categories of this paper are: astro-ph
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The categories of this paper are: hep-ex
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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: hep-ph
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The categories of this paper are: q-alg
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The categories of this paper are: eess
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The categories of this paper are: gr-qc
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The categories of this paper are: hep-lat
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The categories of this paper are: adap-org
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The categories of this paper are: nucl-ex
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The categories of this paper are: quant-ph