Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Screening nature of the van der Waals density functional method: A
  review and analysis of the many-body physics foundation   We review the screening nature and many-body physics foundation of the van
der Waals density functional (vdW-DF) method, a systematic approach to
construct truly nonlocal exchange-correlation energy density functionals. To
that end we define and focus on a class of consistent vdW-DF versions that
adhere to the Lindhard screening logic of the full method formulation. The
consistent-exchange vdW-DF-cx version and its spin extension represent the
first examples of this class; In general, consistent vdW-DFs reflect a
concerted expansion of a formal recast of the adiabatic-connection formula, an
exponential summation of contributions to the local-field response, and the
Dyson equation. We argue that the screening emphasis is essential because the
exchange-correlation energy reflects an effective electrodynamics set by a
long-range interaction. Two consequences are that 1) there are, in principle,
no wiggle room in how one balances exchange and correlation, for example, in
vdW-DF-cx, and that 2) consistent vdW-DFs have a formal structure that allows
them to incorporate vertex-correction effects, at least in the case of levels
that experience recoil-less interactions (for example, near the Fermi surface).
We explore the extent to which the strictly nonempirical vdW-DF-cx formulation
can serve as a systematic extension of the constraint-based semilocal
functionals. For validation, we provide a complete survey of vdW-DF-cx
performance for broad molecular processes and comparing to the
quantum-chemistry calculations that are summarized in that paper. We also
provide new vdW-DF-cx results for metal surface energies and work functions
that we compare to experiment. Finally, we use the screening insight to
separate the vdW-DF nonlocal-correlation term and present tools to compute and
map the binding signatures.

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The categories of this paper are: nlin
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The categories of this paper are: cmp-lg
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The categories of this paper are: chem-ph
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The categories of this paper are: hep-lat
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The categories of this paper are: math
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The categories of this paper are: hep-th
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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: dg-ga
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The categories of this paper are: q-fin
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The categories of this paper are: mtrl-th
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The categories of this paper are: atom-ph
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The categories of this paper are: quant-ph
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The categories of this paper are: plasm-ph
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The categories of this paper are: eess
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The categories of this paper are: chao-dyn