Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Density-Functional-Based Determination of Vibrational Polarizabilities
  in Molecules   We develop a direct derivation for the primary contribution to the
vibrational polarizability for molecules, clusters and other finite systems.
The vibrational polarizability is then calculated within the generalized
gradient approximation to the density functional theory for a variety of
molecules and clusters. The agreement between theory and experiment is quite
good. The results show that for small ionic molecules and clusters, inclusion
of the vibrational polarizability is necessary to achieve quantitative
accuracy.

25
The categories of this paper are: patt-sol
17
The categories of this paper are: q-fin
13
The categories of this paper are: quant-ph
28
The categories of this paper are: alg-geom
16
The categories of this paper are: stat
32
The categories of this paper are: atom-ph
3
The categories of this paper are: physics
26
The categories of this paper are: bayes-an
29
The categories of this paper are: funct-an
27
The categories of this paper are: comp-gas
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The categories of this paper are: adap-org
7
The categories of this paper are: hep-th
18
The categories of this paper are: econ
10
The categories of this paper are: q-bio
33
The categories of this paper are: plasm-ph
23
The categories of this paper are: solv-int