Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A Symmetry Property of Momentum Distribution Functions in the
  Nonequilibrium Steady State of Lattice Thermal Conduction   We study a symmetry property of momentum distribution functions in the steady
state of heat conduction. When the equation of motion is symmetric under change
of signs for all dynamical variables, the distribution function is also
symmetric. This symmetry can be broken by introduction of an asymmetric term in
the interaction potential or the on-site potential, or employing the thermal
walls as heat reservoirs. We numerically find differences of behavior of the
models with and without the on-site potential.

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The categories of this paper are: funct-an
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The categories of this paper are: nucl-th
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The categories of this paper are: q-fin
9
The categories of this paper are: nlin
0
The categories of this paper are: hep-ph
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The categories of this paper are: comp-gas
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The categories of this paper are: stat
7
The categories of this paper are: hep-th
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The categories of this paper are: acc-phys
10
The categories of this paper are: q-bio
2
The categories of this paper are: math
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The categories of this paper are: q-alg
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The categories of this paper are: chem-ph
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The categories of this paper are: adap-org
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The categories of this paper are: patt-sol
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The categories of this paper are: math-ph