Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Non-zero density-velocity consistency relations for large scale
  structures   We present exact kinematic consistency relations for cosmological structures
that do not vanish at equal times and can thus be measured in surveys. These
rely on cross-correlations between the density and velocity, or momentum,
fields. Indeed, the uniform transport of small-scale structures by long
wavelength modes, which cannot be detected at equal times by looking at density
correlations only, gives rise to a shift in the amplitude of the velocity field
that could be measured. These consistency relations only rely on the weak
equivalence principle and Gaussian initial conditions. They remain valid in the
non-linear regime and for biased galaxy fields. They can be used to constrain
non-standard cosmological scenarios or the large-scale galaxy bias.

28
The categories of this paper are: alg-geom
13
The categories of this paper are: quant-ph
5
The categories of this paper are: gr-qc
0
The categories of this paper are: hep-ph
20
The categories of this paper are: acc-phys
24
The categories of this paper are: dg-ga
17
The categories of this paper are: q-fin
3
The categories of this paper are: physics
16
The categories of this paper are: stat
18
The categories of this paper are: econ
37
The categories of this paper are: supr-con
14
The categories of this paper are: math-ph
27
The categories of this paper are: comp-gas
12
The categories of this paper are: nucl-th
22
The categories of this paper are: chao-dyn
34
The categories of this paper are: chem-ph