Abstract
We study the evolution of gravitational waves through the preheating era that follows inflation. The oscillating inflaton drives parametric resonant growth of scalar field fluctuations, and although super-Hubble tensor modes are not strongly amplified, they do carry an imprint of preheating. This is clearly seen in the Weyl tensor, which provides a covariant description of gravitational waves.
| Original language | English |
|---|---|
| Pages (from-to) | 2875-2883 |
| Journal | Classical and Quantum Gravity |
| Volume | 17 |
| Issue number | 15 |
| Publication status | Published - 7 Aug 2000 |