Extreme gravitational waves from inflaton fragmentation

Details Extreme gravitational waves from inflaton fragmentation Extreme gravitational waves from inflaton fragmentation

2010-10-07

arxiv.org/abs/1010.1546v3

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages, 1 figure, updated references, expanded discussion

Scientific paper

Although inflationary models generically predict a flat spectrum of gravitational waves, we point out a general process that produces a sharply peaked spectrum of gravitational radiation. This process is generic for inflationary models with a complex inflaton field which couples to fermions. In particular, for chaotic models these may be the most extreme gravitational waves in the Universe with a very large energy density fraction 10^-9 and ultra-high frequency, 10^10 Hz. Although not amenable to space based interferometers, the signal from this model may be detectable by future table top experiments.

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