Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Singling Out Dynamic and Nondynamic Correlation   The correlation part of the pair density is separated into two components,
one of them being predominant at short electronic ranges and the other at long
ranges. The analysis of the intracular part of these components permits to
classify molecular systems according to the prevailing correlation: dynamic or
nondynamic. The study of the long-range asymptotics reveals the key component
of the pair density that is responsible for the description of London
dispersion forces and a universal decay with the interelectronic distance. The
natural range-separation, the identification of the dispersion forces, and the
kind of predominant correlation type that arise from this analysis are expected
to be important assets in the development of new electronic structure methods
in wave function, density, and reduced density-matrix functional theories.

35
The categories of this paper are: mtrl-th
33
The categories of this paper are: plasm-ph
23
The categories of this paper are: solv-int
34
The categories of this paper are: chem-ph
22
The categories of this paper are: chao-dyn
5
The categories of this paper are: gr-qc
9
The categories of this paper are: nlin
29
The categories of this paper are: funct-an
4
The categories of this paper are: cond-mat
37
The categories of this paper are: supr-con
18
The categories of this paper are: econ
20
The categories of this paper are: acc-phys
26
The categories of this paper are: bayes-an
17
The categories of this paper are: q-fin
11
The categories of this paper are: hep-lat
8
The categories of this paper are: hep-ex