On the power spectrum generated during inflation

Mar Bastero-Gil; Arjun Berera; Namit Mahajan; Raghavan Rangarajan

doi:10.1103/PhysRevD.87.087302

On the power spectrum generated during inflation

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

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

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.

Original language	English
Article number	087302
Number of pages	4
Journal	Physical Review D
Volume	87
Issue number	8
DOIs	https://doi.org/10.1103/PhysRevD.87.087302
Publication status	Published - 13 Feb 2013

Keywords

hep-ph
astro-ph.CO
hep-th
gr-qc

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10.1103/PhysRevD.87.087302

Power spectrum generated during inflationAccepted author manuscript, 121 KB

Particle Theory at the Tait Institute
Ball, R., Berera, A., Boyle, P., Del Debbio, L., Figueroa-O'Farrill, J., Gardi, E., Horsley, R., Kennedy, A., Kenway, R., Pendleton, B. & Simon Soler, J.
STFC
1/10/11 → 30/09/15
Project: Research

Cite this

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title = "On the power spectrum generated during inflation",

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.",

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AB - 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.

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KW - gr-qc

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On the power spectrum generated during inflation

Abstract

Keywords

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Particle Theory at the Tait Institute

Cite this