Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Inflation for Large Scale Structure   Two extensions of ideas lying in the basis of the inflationary scenario of
the early Universe and their effect on the large scale structure of the
present-day Universe are discussed. The first of them is the possibility of
fast phase transitions in physical fields other than an inflaton scalar field
during inflation and nor far from the end of it. This results in the appearance
of specific features in the inflaton effective potential which, in turn, lead
to the generation of localized spikes in the primordial perturbation spectrum.
At present, there seems to exist one scale in the spectrum, $k=0.05h$
Mpc$^{-1}$, around which we might see something of this type. The second one is
the possibility that we are living at the beginning of a new inflation-like era
now. Then observations of clustering of high-redshift objects can provide
information sufficient for the unambiguous determination of the effective
potential of a corresponding present inflaton scalar field.

12
The categories of this paper are: nucl-th
35
The categories of this paper are: mtrl-th
8
The categories of this paper are: hep-ex
7
The categories of this paper are: hep-th
34
The categories of this paper are: chem-ph
33
The categories of this paper are: plasm-ph
2
The categories of this paper are: math
28
The categories of this paper are: alg-geom
16
The categories of this paper are: stat
29
The categories of this paper are: funct-an
22
The categories of this paper are: chao-dyn
26
The categories of this paper are: bayes-an
17
The categories of this paper are: q-fin
21
The categories of this paper are: adap-org
4
The categories of this paper are: cond-mat
24
The categories of this paper are: dg-ga