Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The halo squeezed-limit bispectrum with primordial non-Gaussianity: a
  power spectrum response approach   Modeling the nonlinearity of the halo bispectrum remains a major challenge in
modern cosmology, in particular for ongoing and upcoming large-scale structure
observations that are performed to study the inflationary physics. The "power
spectrum response" offers a solution for bispectrum in the so-called squeezed
limit, in which one wavenumber is much smaller than the other two. As a first
step, we demonstrate that the halo squeezed-limit bispectrum computed from the
second-order standard perturbation theory agrees precisely with the responses
of linear halo power spectrum to large-scale density and potential
fluctuations. Since the halo power spectrum responses to arbitrarily small
scales can straightforwardly be obtained by separate universe simulations, the
response approach provides a novel and powerful technique for modeling the
nonlinear halo squeezed-limit bispectrum.

14
The categories of this paper are: math-ph
12
The categories of this paper are: nucl-th
1
The categories of this paper are: cs
2
The categories of this paper are: math
16
The categories of this paper are: stat
27
The categories of this paper are: comp-gas
29
The categories of this paper are: funct-an
35
The categories of this paper are: mtrl-th
33
The categories of this paper are: plasm-ph
28
The categories of this paper are: alg-geom
9
The categories of this paper are: nlin
37
The categories of this paper are: supr-con
30
The categories of this paper are: q-alg
31
The categories of this paper are: ao-sci
19
The categories of this paper are: eess
18
The categories of this paper are: econ