Particle production during inflation and gravitational waves detectable by ground-based interferometers

Details Particle production during inflation and gravitational waves detectable by ground-based interferometers Particle production during inflation and gravitational waves detectable by ground-based interferometers

2011-08-31

arxiv.org/abs/1109.0022v2

J. L.Cook, L. Sorbo, "Particle production during inflation and gravitational waves detectable by ground-based interferometers,

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

20 pages, 3 figures, version on Phys. Rev. D

Scientific paper

10.1103/PhysRevD.85.023534

Inflation typically predicts a quasi scale-invariant spectrum of gravitational waves. In models of slow-roll inflation, the amplitude of such a background is too small to allow direct detection without a dedicated space-based experiment such as the proposed BBO or DECIGO. In this paper we note that particle production during inflation can generate a feature in the spectrum of primordial gravitational waves. We discuss the possibility that such a feature might be detected by ground-based laser interferometers such as Advanced LIGO and Advanced Virgo, which will become operational in the next few years. We also discuss the prospects of detection by a space interferometer like LISA. We first study gravitational waves induced by nonperturbative, explosive particle production during inflation: while explosive production of scalar quanta does not generate a significant bump in the primordial tensor spectrum, production of vectors can. We also show that chiral gravitational waves produced by electromagnetic fields amplified by an axion-like inflaton could be detectable by Advanced LIGO.

Affiliated with

Also associated with

No associations

Rating

Particle production during inflation and gravitational waves detectable by ground-based interferometers does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Particle production during inflation and gravitational waves detectable by ground-based interferometers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Particle production during inflation and gravitational waves detectable by ground-based interferometers will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-224292