Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Microscopic derivation of the Boltzmann equation for transport
  coefficients of resonating fermions at high temperature   Motivated by the recently observed failure of the kinetic theory for the bulk
viscosity, we in turn revisit the shear viscosity and the thermal conductivity
of two-component fermions with a zero-range interaction both in two and three
dimensions. In particular, we show that their Kubo formula evaluated exactly in
the high-temperature limit to the lowest order in fugacity is reduced to the
linearized Boltzmann equation. Previously, such a microscopic derivation of the
latter was achieved only incompletely corresponding to the relaxation-time
approximation. Here, we complete it by resuming all contributions that are
naively higher orders in fugacity but become comparable in the zero-frequency
limit due to the pinch singularity, leading to a self-consistent equation for a
vertex function identical to the linearized Boltzmann equation. We then compute
the shear viscosity and the thermal conductivity in the high-temperature limit
for an arbitrary scattering length and find that the Prandtl number exhibits a
nonmonotonic behavior slightly below the constant value in the relaxation-time
approximation.

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The categories of this paper are: patt-sol
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The categories of this paper are: comp-gas
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The categories of this paper are: solv-int
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The categories of this paper are: quant-ph
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The categories of this paper are: stat
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The categories of this paper are: hep-ex
0
The categories of this paper are: hep-ph
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The categories of this paper are: acc-phys
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The categories of this paper are: q-fin
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The categories of this paper are: cmp-lg
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The categories of this paper are: supr-con
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The categories of this paper are: eess
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The categories of this paper are: mtrl-th
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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: dg-ga