Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Dark energy and large-scales solitonic back-reaction behavior in
  power-law inflation   We study the behavior of large-scale (cosmological) modes of back-reaction
effects during inflation. We find that the group of modes which describes the
very large-scale fluctuations of energy density during inflation due to
back-reaction effects evolve in phase between them, but there is a tear of
these modes with respect to the other modes that describe astrophysical scales.
This effect could be the origin for the large-scale homogeneity and isotropy of
the universe and could be a manifestation of the existence of dark energy,
which is responsible for the accelerated expansion of the universe.

18
The categories of this paper are: econ
2
The categories of this paper are: math
32
The categories of this paper are: atom-ph
19
The categories of this paper are: eess
33
The categories of this paper are: plasm-ph
20
The categories of this paper are: acc-phys
21
The categories of this paper are: adap-org
37
The categories of this paper are: supr-con
12
The categories of this paper are: nucl-th
35
The categories of this paper are: mtrl-th
29
The categories of this paper are: funct-an
9
The categories of this paper are: nlin
15
The categories of this paper are: nucl-ex
3
The categories of this paper are: physics
1
The categories of this paper are: cs
11
The categories of this paper are: hep-lat