New exact solutions for inflationary cosmological perturbations
Astrophysics
2009-10-31 v2 General Relativity and Quantum Cosmology
High Energy Physics - Phenomenology
Abstract
From a general ansatz for the effective potential of cosmological perturbations we find new, exact solutions in single-scalar-field inflation: a three parameter family of exact inflationary solutions that encompasses all exact solutions that have been known previously (power-law inflation, Easther's model, and a generalised version of Starobinsky's solution). The main feature of this new family is that the spectral indices are scale dependent.
Keywords
Cite
@article{arxiv.astro-ph/0005542,
title = {New exact solutions for inflationary cosmological perturbations},
author = {Jerome Martin and Dominik J. Schwarz},
journal= {arXiv preprint arXiv:astro-ph/0005542},
year = {2009}
}
Comments
12 pages, 5 figures, introduction improved, references added, accepted for publication in Phys. Lett. B