Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: QCD nature of dark energy at finite temperature: cosmological
  implications   The Veneziano ghost field has been proposed as an alternative source of dark
energy whose energy density is consistent with the cosmological observations.
In this model, the energy density of QCD ghost field is expressed in terms of
QCD degrees of freedom at zero temperature. We extend this model to finite
temperature to search the model predictions from late time to early universe.
We depict the variations of QCD parameters entering the calculations, dark
energy density, equation of state, Hubble and deceleration parameters on
temperature from zero to a critical temperature. We compare our results with
the observations and theoretical predictions existing at different eras. It is
found that this model safely defines the universe from quark condensation up to
now and its predictions are not in tension with those of the standard
cosmology. The EoS parameter of dark energy is dynamical and evolves from
$-1/3$ in the presence of radiation to $-1$ at late time. The finite
temperature ghost dark energy predictions on the Hubble parameter well fit to
those of $\Lambda$CDM and observations at late time.

4
The categories of this paper are: cond-mat
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The categories of this paper are: astro-ph
26
The categories of this paper are: bayes-an
35
The categories of this paper are: mtrl-th
18
The categories of this paper are: econ
25
The categories of this paper are: patt-sol
9
The categories of this paper are: nlin
17
The categories of this paper are: q-fin
23
The categories of this paper are: solv-int
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The categories of this paper are: physics
19
The categories of this paper are: eess
29
The categories of this paper are: funct-an
27
The categories of this paper are: comp-gas
33
The categories of this paper are: plasm-ph
16
The categories of this paper are: stat
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The categories of this paper are: math