Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Measuring the cosmological density field twice: A novel test of dark
  energy using the CMB quadrupole   The scattering of cosmic microwave background (CMB) radiation in galaxy
clusters induces polarization signals according to the quadrupole anisotropy in
the photon distribution at the cluster location. This `remote quadrupole'
derived from the measurements of the induced polarization provides an
opportunity for reconstructing primordial fluctuations on large scales. We
discuss that comparing the local CMB quadrupoles predicted by these
reconstructed primordial fluctuations and the direct measurements done by CMB
satellites may enable us to test the dark energy beyond cosmic variance limits.

22
The categories of this paper are: chao-dyn
3
The categories of this paper are: physics
23
The categories of this paper are: solv-int
9
The categories of this paper are: nlin
2
The categories of this paper are: math
33
The categories of this paper are: plasm-ph
8
The categories of this paper are: hep-ex
30
The categories of this paper are: q-alg
0
The categories of this paper are: hep-ph
20
The categories of this paper are: acc-phys
29
The categories of this paper are: funct-an
11
The categories of this paper are: hep-lat
16
The categories of this paper are: stat
10
The categories of this paper are: q-bio
32
The categories of this paper are: atom-ph
34
The categories of this paper are: chem-ph