Inflationary gravitational waves and the evolution of the early universe

@inproceedings{Jinno2014InflationaryGW,
  title={Inflationary gravitational waves and the evolution of the early universe},
  author={Ryusuke Jinno and Takeo Moroi and Kazunori Nakayama},
  year={2014}
}
We study the effects of various phenomena which may have happened in the early universe on the spectrum of inflationary gravitational waves. The phenomena include phase transitions, entropy productions from non-relativistic matter, the production of dark radiation, and decoupling of dark matter/radiation from thermal bath. These events can create several characteristic signatures in the inflationary gravitational wave spectrum, which may be direct probes of the history of the early universe and… CONTINUE READING