Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Phonon Hall thermal conductivity from Green-Kubo formula   We derive a formula for the thermal conductivity tensor of a ballistic phonon
Hall model. It is found that, although the diagonal elements of the
conductivity tensor diverge to infinite, the off-diagonal elements are
finite,antisymmetric, and odd in magnetic field. The off-diagonal elements are
non-zero only if the dynamic matrix of the phonon system breaks mirror
reflection symmetry. The results are obtained without perturbative assumptions
about the spin-phonon interactions.

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The categories of this paper are: astro-ph
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The categories of this paper are: math-ph
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The categories of this paper are: mtrl-th
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The categories of this paper are: alg-geom
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The categories of this paper are: supr-con
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The categories of this paper are: physics
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The categories of this paper are: chem-ph
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The categories of this paper are: atom-ph
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The categories of this paper are: acc-phys
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The categories of this paper are: q-alg
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The categories of this paper are: q-fin
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The categories of this paper are: hep-ph
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The categories of this paper are: hep-ex
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The categories of this paper are: q-bio
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The categories of this paper are: cmp-lg
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The categories of this paper are: nlin