Harrison--Zeldovich spectrum from conformal invariance
High Energy Physics - Theory
2009-10-02 v1 Cosmology and Nongalactic Astrophysics
High Energy Physics - Phenomenology
Abstract
We show that flat spectrum of small perturbations of field(s) is generated in a simple way in a theory of multi-component scalar field provided this theory is conformally invariant, it has some global symmetry and the quartic potential is negative. We suggest a mechanism of converting these field perturbations into adiabatic scalar perturbations with flat spectrum.
Keywords
Cite
@article{arxiv.0906.3693,
title = {Harrison--Zeldovich spectrum from conformal invariance},
author = {V. A. Rubakov},
journal= {arXiv preprint arXiv:0906.3693},
year = {2009}
}
Comments
14 pages, 1 figure