Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Spectral Line Shape of High-Frequency Local Vibrations in Adsorbed
  Molecular Lattices   We consider high-frequency local vibrations anharmonically coupled with
low-frequency modes in a planar lattice of adsorbed molecules. The effect of
lateral intermolecular interactions on the spectral line shape for local
vibrations is analyzed in the limit of the high density of adsorbed molecules.
It is shown that the spectral line positions and widths depend on behaviour of
low-frequency distribution function for a system of adsorbed molecules. The
results obtained allows the spectral line characteristics of the local
vibrations for isotopically diluted {$^{13}$}C{$^{16}$}O{$_{2}$} molecules in
the {$^{12}$}C{$^{16}$}O{$_{2}$} monolayer on the NaCl(100) surface to be
described in agreement with the experimentally measured values.

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The categories of this paper are: solv-int
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The categories of this paper are: chao-dyn
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The categories of this paper are: hep-th
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The categories of this paper are: hep-ex
28
The categories of this paper are: alg-geom
14
The categories of this paper are: math-ph
3
The categories of this paper are: physics
34
The categories of this paper are: chem-ph
21
The categories of this paper are: adap-org
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The categories of this paper are: hep-ph
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The categories of this paper are: acc-phys
32
The categories of this paper are: atom-ph
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The categories of this paper are: stat
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The categories of this paper are: eess
37
The categories of this paper are: supr-con
33
The categories of this paper are: plasm-ph