Abstract
We provide a concise review on multi-field inflation and cosmological perturbations. We discuss convenient and physically meaningful bases in terms of which perturbations can be systematically studied. We give formal accounts on the gauge fixing conditions and present the perturbation action in two gauges. We also briefly review nonlinear perturbations.
| Original language | English |
|---|---|
| Article number | 1740003 |
| Journal | International Journal of Modern Physics D |
| Volume | 26 |
| Issue number | 1 |
| DOIs | |
| State | Published - 1 Jan 2017 |
Bibliographical note
Publisher Copyright:© 2017 World Scientific Publishing Company.
Keywords
- Cosmology
- cosmological perturbations
- inflation
- multi-field dynamics