Inflationary potentials yielding constant scalar perturbation spectral indices

2003/11/30 by Alberto Vallinotto, Edmund J. Copeland, Edward W. Kolb +3 · 2 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Galaxies: Formation, Evolution, Phenomena #astro-ph

paper · pdf · doi:10.1103/physrevd.69.103519

published as Phys.Rev. D69 (2004) 103519 · 8 pages, 3 figures. New general derivation method, structure changed

arxiv created 2004/02/11 · openalex publication_date 2004/05/26 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/01

Abstract

We explore the types of slow-roll inflationary potentials that result in scalar perturbations with a constant spectral index, i.e., perturbations that may be described by a single power-law spectrum over all observable scales. We devote particular attention to the type of potentials that result in the Harrison-Zel'dovich spectrum.

Citations

• First‐Year Wilkinson Microwave Anisotropy Probe ( WMAP ) Observations: Preliminary Maps and Basic Results
• Particle Physics Models of Inflation and the Cosmological Density Perturbation

Cited by

• Intermediate inflation on the brane
• Approximate consistency condition from a running spectral index in slow-roll inflationary models