English

Constraints on primordial density perturbations from induced gravitational waves

Cosmology and Nongalactic Astrophysics 2010-04-06 v3 General Relativity and Quantum Cosmology

Abstract

We consider the stochastic background of gravitational waves produced during the radiation-dominated hot big bang as a constraint on the primordial density perturbation on comoving length scales much smaller than those directly probed by the cosmic microwave background or large-scale structure. We place weak upper bounds on the primordial density perturbation from current data. Future detectors such as BBO and DECIGO will place much stronger constraints on the primordial density perturbation on small scales.

Keywords

Cite

@article{arxiv.0907.4073,
  title  = {Constraints on primordial density perturbations from induced gravitational waves},
  author = {Hooshyar Assadullahi and David Wands},
  journal= {arXiv preprint arXiv:0907.4073},
  year   = {2010}
}

Comments

Version to appear in Phys Rev D