Constraints on primordial density perturbations from induced gravitational waves

Journal Article · Fri Jan 15 00:00:00 EST 2010 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.81.023527· OSTI ID:21409059

Assadullahi, Hooshyar; Wands, David ^[1]

---

1. Institute of Cosmology and Gravitation, University of Portsmouth, Dennis Sciama Building, Burnaby Road, Portsmouth PO1 3FX (United Kingdom)

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.

• OSTI ID: 21409059
• Journal Information: Physical Review. D, Particles Fields, Vol. 81, Issue 2; Other Information: DOI: 10.1103/PhysRevD.81.023527; (c) 2010 The American Physical Society; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
DENSITY
DISTURBANCES
GRAVITATIONAL WAVES
PERTURBATION THEORY
RELICT RADIATION
STOCHASTIC PROCESSES
ELECTROMAGNETIC RADIATION
MICROWAVE RADIATION
PHYSICAL PROPERTIES
RADIATIONS