Cosmological backgrounds of gravitational waves and eLISA/NGO: phase transitions, cosmic strings and other sources

@article{Binetruy2012CosmologicalBO,
  title={Cosmological backgrounds of gravitational waves and eLISA/NGO: phase transitions, cosmic strings and other sources},
  author={Pierre Bin'etruy and Alejandro Boh'e and Chiara Caprini and Jean Francois Dufaux},
  journal={Journal of Cosmology and Astroparticle Physics},
  year={2012},
  volume={2012},
  pages={027-027}
}
We review several cosmological backgrounds of gravitational waves accessible to direct-detection experiments, with a special emphasis on those backgrounds due to first-order phase transitions and networks of cosmic (super-)strings. For these two particular sources, we revisit in detail the computation of the gravitational wave background and improve the results of previous works in the literature. We apply our results to identify the scientific potential of the NGO/eLISA mission of ESA… 
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References

SHOWING 1-10 OF 322 REFERENCES
Cosmological gravitational wave backgrounds
An overview is presented of possible cosmologically distant sources of gravitational wave backgrounds, especially those which might produce detectable backgrounds in the LISA band between 0.1 and 100
Gravitational-wave stochastic background from cosmic strings.
TLDR
It is found that current data from interferometric gravitational wave detectors, such as Laser Interferometer Gravitational Wave Observatory (LIGO), are sensitive to areas of parameter space of cosmic string models complementary to those accessible to pulsar, BBN, and CMB bounds.
Probing the gravitational wave signature from cosmic phase transitions at different scales
We present a new signature by which one could potentially discriminate between a spectrum of gravitational radiation generated by a self-ordering scalar field vs that of inflation, specifically a
Gravitational-wave stochastic background from kinks and cusps on cosmic strings
We compute the contribution of kinks on cosmic string loops to stochastic background of gravitational waves (SBGW). We find that kinks contribute at the same order as cusps to the SBGW. We discuss
Gravitational wave bursts from cosmic strings
TLDR
The GW bursts discussed here might be accompanied by gamma ray bursts and be detectable by the planned GW detectors LIGO/VIRGO and LISA for string tensions as small as G&mgr; approximately 10(-13).
Relic backgrounds of gravitational waves from cosmic turbulence
Turbulence may have been produced in the early universe by several nonequilibrium processes. Periods of cosmic turbulence may have left a detectable relic under the form of stochastic backgrounds of
Cosmological evolution of cosmic string loops
The existence of a scaling evolution for cosmic string loops in an expanding universe is demonstrated for the first time by means of numerical simulations. In contrast with what is usually assumed,
...
...