Comments on the paper by E. Gjerlow and O. Elgaroy "Are all modes created equal ? An analysis of the WMAP 5- and 7-year data without inflationary prejudice"

TL;DR

This paper critiques a previous study on cosmic microwave background data, emphasizing the importance of avoiding inflationary biases and clarifying the nature of primordial gravitational waves and density perturbations.

Contribution

It provides critical comments on existing inflationary analyses, highlighting potential misconceptions and advocating for more accurate interpretations of cosmological data.

Findings

Highlights inflationary misunderstandings in current models

Emphasizes the need for unbiased analysis of primordial perturbations

Questions standard inflationary results in light of new data

Abstract

The amount and characteristics of quantum-mechanically generated relic gravitational waves and primordial density perturbations is a subject of great theoretical and observational importance. Unfortunately, this subject is deeply contaminated by inflationary misunderstandings and incorrect "standard inflationary results". This note presents comments on a particular paper, arXiv:1008.4471v1. However, the comments may have a more general significance and may be of interest to other researchers working in this area of science.