Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Exact solution of scalar field cosmology with exponential potentials and
  transient acceleration   We show that the general solution of scalar field cosmology in $d$ dimensions
with exponential potentials for flat Robertson-Walker metric can be found in a
straightforward way by introducing new variables which completely decouple the
system. The explicit solution shows the region of parameters where the
expansion has eternal acceleration, transient periods of acceleration, or no
period of acceleration at all. In the cases of transient acceleration, the
energy density exhibits a plateau during the accelerated expansion, where
$p\cong -\rho$, due to dominance of potential energy. We determine the interval
of accelerated expansion in terms of a simple formula. In particular, it shows
that the period of accelerated expansion decreases in higher dimensions.

23
The categories of this paper are: solv-int
26
The categories of this paper are: bayes-an
31
The categories of this paper are: ao-sci
13
The categories of this paper are: quant-ph
3
The categories of this paper are: physics
15
The categories of this paper are: nucl-ex
30
The categories of this paper are: q-alg
14
The categories of this paper are: math-ph
18
The categories of this paper are: econ
34
The categories of this paper are: chem-ph
29
The categories of this paper are: funct-an
36
The categories of this paper are: cmp-lg
9
The categories of this paper are: nlin
2
The categories of this paper are: math
20
The categories of this paper are: acc-phys
16
The categories of this paper are: stat