Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A new phase of scalar field with a kinetic term non-minimally coupled to
  gravity   We consider the dynamics of a scalar field non-minimally coupled to gravity
in the context of cosmology. It is demonstrated that there exists a new phase
for the scalar field, in addition to the inflationary and dust-like (reheating
period) phases. Analytic expressions for the scalar field and the Hubble
parameter, which describe the new phase are given. The Hubble parameter
indicates an accelerating expanding Universe. We explicitly show that the
scalar field oscillates with time- dependent frequency. Moreover, an
interaction between the scalar field in the new phase and other fields is
discussed. It turns out that the parametric resonance is absent, which is
another crucial difference between the dynamics of the scalar field in the new
phase and dust-like phase.

31
The categories of this paper are: ao-sci
2
The categories of this paper are: math
32
The categories of this paper are: atom-ph
7
The categories of this paper are: hep-th
9
The categories of this paper are: nlin
3
The categories of this paper are: physics
29
The categories of this paper are: funct-an
12
The categories of this paper are: nucl-th
17
The categories of this paper are: q-fin
16
The categories of this paper are: stat
21
The categories of this paper are: adap-org
8
The categories of this paper are: hep-ex
28
The categories of this paper are: alg-geom
22
The categories of this paper are: chao-dyn
14
The categories of this paper are: math-ph
20
The categories of this paper are: acc-phys