Enhanced (p)reheating in DBI Inflation
arXiv:0908.4217
Abstract
We study preheating in DBI hybrid inflation. Preheating occurs since the matter fields are non-minimally coupled to the inflaton. Despite the coupling being small, preheating happens as a narrow parametric resonance in which matter fields and inflaton modes are exponentially created. We show that, within the approximations used, the process is very efficient at late times. The resonance stage gives way to the decay of the inflaton into bosonic or fermionic degrees of freedom and the corresponding reheating temperature is determined.
21 pages
References in corpus (16)
- Large N Field Theories, String Theory and Gravity
- Towards the Theory of Reheating After Inflation
- Hybrid Inflation
- DBI in the Sky
- Observational Signatures and Non-Gaussianities of General Single Field Inflation
- Brane Inflation
- Universe Reheating after Inflation
- Scalar Speed Limits and Cosmology: Acceleration from D-cceleration
- Structure of Resonance in Preheating after Inflation
- Instant Preheating
- Running Non-Gaussianities in DBI Inflation
- Warped Reheating in Brane-Antibrane Inflation
- Phenomenology of D-Brane Inflation with General Speed of Sound
- Warped Reheating in Multi-Throat Brane Inflation
- A Study of Structure Formation and Reheating in the D3/D7 Brane Inflation Model
- Strings, Branes and Cosmology: What can we hope to learn?