Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Cosmology with space-based gravitational-wave detectors --- dark energy
  and primordial gravitational waves ---   Proposed space-based gravitational-wave (GW) detectors such as DECIGO and BBO
will detect ~10^6 neutron-star (NS) binaries and determine the luminosity
distances to the binaries with high precision. Combining the luminosity
distances with cosmologically-induced phase corrections on the GWs,
cosmological expansion out to high redshift can be measured without the
redshift determinations of host galaxies by electromagnetic observation and be
a unique probe for dark energy. On the other hand, such a NS-binary foreground
should be subtracted to detect primordial GWs produced during inflation. Thus,
the constraining power on dark energy and the detectability of the primordial
gravitational waves strongly depend on the detector sensitivity and are in
close relation with one another. In this paper, we investigate the constraints
on the equation of state of dark energy with future space-based GW detectors
with/without identifying the redshifts of host galaxies. We also study the
sensitivity to the primordial GWs, properly dealing with the residual of the NS
binary foreground. Based on the results, we discuss the detector sensitivity
required to achieve the forementioned targeted study of cosmology.

24
The categories of this paper are: dg-ga
11
The categories of this paper are: hep-lat
18
The categories of this paper are: econ
2
The categories of this paper are: math
36
The categories of this paper are: cmp-lg
19
The categories of this paper are: eess
4
The categories of this paper are: cond-mat
28
The categories of this paper are: alg-geom
9
The categories of this paper are: nlin
34
The categories of this paper are: chem-ph
33
The categories of this paper are: plasm-ph
31
The categories of this paper are: ao-sci
25
The categories of this paper are: patt-sol
30
The categories of this paper are: q-alg
22
The categories of this paper are: chao-dyn
13
The categories of this paper are: quant-ph