Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Temperature dependence of the dielectric permittivity of CaF2, BaF2 and
  Al2O3: application to the prediction of a temperature dependent van der Waals
  surface interaction exerted onto a neighbouring Cs (8P{3/2}) atom   The temperature behaviour in the range 22\degree C to 500\degree C of the
dielectric permittivity in the infrared range is investigated for CaF2, BaF2
and Al2O3 through reflectivity measurements. The dielectric permittivity is
retrieved by fitting reflectivity spectra with a model taking into account
multiphonon contributions. The results extrapolated from the measurements are
applied to predict a temperature-dependent atom-surface van der Waals
interaction. We specifically consider as the atom of interest Cs (8P3/2), the
most relevant virtual couplings of which, fall in the range of thermal
radiation and are located in the vicinity of the reststrahlen band of fluoride
materials.

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The categories of this paper are: hep-ex
32
The categories of this paper are: atom-ph
18
The categories of this paper are: econ
12
The categories of this paper are: nucl-th
31
The categories of this paper are: ao-sci
0
The categories of this paper are: hep-ph
21
The categories of this paper are: adap-org
22
The categories of this paper are: chao-dyn
19
The categories of this paper are: eess
2
The categories of this paper are: math
26
The categories of this paper are: bayes-an
7
The categories of this paper are: hep-th
5
The categories of this paper are: gr-qc
16
The categories of this paper are: stat
17
The categories of this paper are: q-fin
36
The categories of this paper are: cmp-lg