Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Comparing four hard-sphere approximations for the low-temperature WCA
  melting line   By combining interface-pinning simulations with numerical integration of the
Clausius-Clapeyron equation we determine accurately the melting-line
coexistence pressure and fluid/crystal densities of the Weeks-Chandler-Andersen
(WCA) system covering four decades of temperature. The data are used for
comparing the melting-line predictions of the Boltzmann,
Andersen-Weeks-Chandler, Barker-Henderson, and Stillinger hard-sphere
approximations. The Andersen-Weeks-Chandler and the Barker-Henderson theories
give the most accurate predictions, and they both work excellently in the
zero-temperature limit for which analytical expressions are derived here.

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The categories of this paper are: stat
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The categories of this paper are: q-bio
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The categories of this paper are: funct-an
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The categories of this paper are: hep-th
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The categories of this paper are: adap-org
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The categories of this paper are: bayes-an
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The categories of this paper are: astro-ph
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The categories of this paper are: ao-sci
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The categories of this paper are: hep-ex
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The categories of this paper are: nucl-th
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The categories of this paper are: physics
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The categories of this paper are: hep-ph
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The categories of this paper are: nucl-ex
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The categories of this paper are: quant-ph
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The categories of this paper are: atom-ph
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The categories of this paper are: supr-con