Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The dynamics of universe for exponential decaying dark energy   In this study we consider an exponential decaying form for dark energy as EoS
parameter in order to discuss the dynamics of the universe. Firstly, assuming
that universe is filled with an ideal fluid which consists of exponential
decaying dark energy we obtain time dependent behavior of several physical
quantities such as energy density, pressure and others for dark energy, dark
energy-matter coupling and non-coupling cases. Secondly, using scalar field
instead of an ideal fluid we obtain these physical quantities in terms of
scalar potential and kinetic term for the same cases in scalar-tensor
formalism. Finally we show that ideal fluid and scalar-tensor description of
dark energy give mathematically equivalent results for this EoS parameter.

16
The categories of this paper are: stat
14
The categories of this paper are: math-ph
26
The categories of this paper are: bayes-an
4
The categories of this paper are: cond-mat
6
The categories of this paper are: astro-ph
33
The categories of this paper are: plasm-ph
35
The categories of this paper are: mtrl-th
9
The categories of this paper are: nlin
2
The categories of this paper are: math
11
The categories of this paper are: hep-lat
22
The categories of this paper are: chao-dyn
18
The categories of this paper are: econ
27
The categories of this paper are: comp-gas
20
The categories of this paper are: acc-phys
28
The categories of this paper are: alg-geom
21
The categories of this paper are: adap-org