Extreme gravitational waves from inflaton fragmentation
arXiv:1010.1546
Abstract
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.
12 pages, 1 figure, updated references, expanded discussion
References in corpus (18)
- Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Data Processing, Sky Maps, and Basic Results
- Search for a stochastic background of 100-MHz gravitational waves with laser interferometers
- Laser-interferometric Detectors for Gravitational Wave Background at 100 MHz : Detector Design and Sensitivity
- Dynamical and Gravitational Instability of Oscillating-Field Dark Energy and Dark Matter
- Gravitational waves from fragmentation of a primordial scalar condensate into Q-balls
- Chaotic inflation, radiative corrections and precision cosmology
- Gravitational waves from the fragmentation of a supersymmetric condensate
- Stability of Q-balls and Catastrophe
- Supersymmetric Q-balls: A Numerical Study
- Spinning Supersymmetric Q-balls
- Entropy production by Q-ball decay for diluting long-lived charged particles
- Limits on high-frequency gravitational wave background from its interplay with large scale magnetic fields
- Affleck-Dine condensate, late thermalization and the gravitino problem
- Exciting gauge field and gravitons in a brane-anti-brane annihilation
- The ground states of baryoleptonic Q-balls in supersymmetric models
- Gravitational waves from first order phase transitions during inflation
- Fate of thermal log type Q balls
- A new gravitational wave background from the Big Bang