From the spectrum to inflation: An inverse formula for the general slow-roll spectrum

Minu Joy, Ewan D. Stewart, Jinn Ouk Gong, Hyun Chul Lee

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

We propose a general inverse formula for extracting inflationary parameters from the power spectrum of cosmological perturbations. Under the general slow-roll scheme, which helps to probe the properties of inflation in a model independent way, we invert the leading-order, single-field, power spectrum formula. We also give some physically interesting examples to demonstrate its wide applicability and illuminate its properties.

Original languageEnglish
Pages (from-to)267-273
Number of pages7
JournalJournal of Cosmology and Astroparticle Physics
Issue number4
DOIs
StatePublished - 1 Apr 2005

Keywords

  • Cosmological perturbation theory
  • Inflation
  • Physics of the early universe

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