Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Optical conductivity of warm dense matter in wide frequency range within
  quantum statistical and kinetic approach   Fundamental properties of warm dense matter are described by the dielectric
function, which gives access to the frequency-dependent electrical
conductivity, absorption, emission and scattering of radiation, charged
particles stopping and further macroscopic properties. Different approaches to
the dielectric function and the related dynamical collision frequency are
compared in a wide frequency range. The high-frequency limit describing inverse
bremsstrahlung and the low-frequency limit of the dc conductivity are
considered. Sum rules and Kramers-Kronig relation are checked for the
generalized linear response theory and the standard approach following kinetic
theory. The results are discussed in application to aluminum, xenon and argon
plasmas.

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The categories of this paper are: hep-th
5
The categories of this paper are: gr-qc
19
The categories of this paper are: eess
33
The categories of this paper are: plasm-ph
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The categories of this paper are: alg-geom
29
The categories of this paper are: funct-an
4
The categories of this paper are: cond-mat
15
The categories of this paper are: nucl-ex
30
The categories of this paper are: q-alg
12
The categories of this paper are: nucl-th
27
The categories of this paper are: comp-gas
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The categories of this paper are: hep-ex
26
The categories of this paper are: bayes-an
14
The categories of this paper are: math-ph
24
The categories of this paper are: dg-ga
23
The categories of this paper are: solv-int