Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Velocity gradient power functional for Brownian dynamics   We present an explicit and simple approximation for the superadiabatic excess
(over ideal gas) free power functional, admitting the study of the
nonequilibrium dynamics of overdamped Brownian many-body systems. The
functional depends on the local velocity gradient and is systematically
obtained from treating the microscopic stress distribution as a conjugate
field. The resulting superadiabatic forces are beyond dynamical density
functional theory and are of viscous nature. Their high accuracy is
demonstrated by comparison to simulation results.

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The categories of this paper are: q-bio
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The categories of this paper are: quant-ph
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The categories of this paper are: comp-gas
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The categories of this paper are: nucl-ex
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The categories of this paper are: mtrl-th
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The categories of this paper are: hep-lat
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The categories of this paper are: eess
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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: cmp-lg
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The categories of this paper are: patt-sol
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The categories of this paper are: math
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The categories of this paper are: dg-ga
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The categories of this paper are: chem-ph
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The categories of this paper are: q-fin
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The categories of this paper are: supr-con