Cosmological perturbations from multi-field inflation
Astrophysics
2008-12-18 v1 General Relativity and Quantum Cosmology
High Energy Physics - Theory
Abstract
We briefly review the standard derivation of the spectra of cosmological perturbations in the simplest models of inflation. We then consider models with several scalar fields, described by Lagrangians with an arbitrary dependence on the kinetic terms. We illustrate our general formalism with the case of multi-field DBI inflation.
Keywords
Cite
@article{arxiv.0809.2540,
title = {Cosmological perturbations from multi-field inflation},
author = {David Langlois},
journal= {arXiv preprint arXiv:0809.2540},
year = {2008}
}
Comments
Invited plenary talk at ICGC-07 (International Conference on Gravitation and Cosmology), 17-21 December 2007, IUCAA, Pune, India; 10 pages, no figure