Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Exact Exchange-Correlation Functional for the Infinitely Stretched
  Hydrogen Molecule   The exchange-correlation hole density of the infinitely stretched
(dissociated) hydrogen molecule can be cast into a closed analytical form by
using its exact wave function. This permits to obtain an explicit
exchange-correlation energy functional of the electron density which allows for
its functional derivation to yield the corresponding Kohh-Sham effective
exchange-correlation potential. We have shown that this exchange-correlation
functional is exact for the dissociated hydrogen molecule, yields its
dissociation energy correctly, and its corresponding exchange-correlation
potential has the correct $-1/r$ asymptotic behavior.

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The categories of this paper are: plasm-ph
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The categories of this paper are: dg-ga
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The categories of this paper are: nlin
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The categories of this paper are: q-alg
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The categories of this paper are: math-ph
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The categories of this paper are: atom-ph
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The categories of this paper are: nucl-th
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The categories of this paper are: hep-ph
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The categories of this paper are: adap-org
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The categories of this paper are: comp-gas
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The categories of this paper are: hep-ex
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The categories of this paper are: alg-geom
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The categories of this paper are: nucl-ex
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The categories of this paper are: hep-lat
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The categories of this paper are: econ
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The categories of this paper are: funct-an