Work

Power spectrum generated during inflation

Year: 2013

Type: article

Abstract: Recently there have been differing viewpoints on how to evaluate the curvature power spectrum generated during inflation. Since the primordial curvature power spectrum is the seed for structure formation and provides a link between observations and inflationary parameters, it is important to resolve any disagreements over the expression for the power spectrum. In this article, we discuss these differing viewpoints and indicate issues that are relevant to both approaches. We then argue why the standard expression is valid.

Source: Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields

DOI: 10.1103/physrevd.87.087302

Authors: Mar Bastero-Gil, Arjun Berera, Namit Mahajan, Raghavan Rangarajan

Institutions: Universidad de Granada, University of Edinburgh, Physical Research Laboratory

Language: English

Topic: Cosmology and Gravitation Theories

Subfield: Astronomy and Astrophysics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funder: Science and Technology Facilities Council

Awards: G1327502800, G8353447643