Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Probing primordial non-Gaussianity with 21 cm fluctuations from
  minihalos   We investigate future constraints on primordial local-type non-Gaussianity
from 21 cm angular power spectrum from minihalos. We particularly focus on the
trispectrum of primordial curvature perturbations which are characterized by
the non-linearity parameters $\tau_{\rm NL}$ and $g_{\rm NL}$. We show that
future measurements of minihalo 21 cm angular power spectrum can probe these
non-linearity parameters with an unprecedented precision of $\tau_{\rm
NL}\sim30$ and $g_{\rm NL}\sim2\times10^3$ for Square Kilometre Array (SKA) and
$\tau_{\rm NL}\sim0.6$ and $g_{\rm NL}\sim8\times10^2$ for Fast Fourier
Transform Telescope (FFTT). These levels of sensitivity would give significant
implications for models of the inflationary Universe and the origin of cosmic
density fluctuations.

1
The categories of this paper are: cs
8
The categories of this paper are: hep-ex
16
The categories of this paper are: stat
11
The categories of this paper are: hep-lat
22
The categories of this paper are: chao-dyn
9
The categories of this paper are: nlin
27
The categories of this paper are: comp-gas
25
The categories of this paper are: patt-sol
23
The categories of this paper are: solv-int
36
The categories of this paper are: cmp-lg
14
The categories of this paper are: math-ph
24
The categories of this paper are: dg-ga
13
The categories of this paper are: quant-ph
19
The categories of this paper are: eess
26
The categories of this paper are: bayes-an
29
The categories of this paper are: funct-an