Non-linear corrections to inflationary power spectrum

We study non-linear contributions to the power spectrum of the curvature perturbation on super-horizon scales, produced during slow-roll inflation driven by a canonical single scalar field. We find that on large scales the linear power spectrum completely dominates and leading non-linear corrections...

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Detalles Bibliográficos
Autores principales: Gong, Jinn-Ouk, Noh, Hyerim, Hwang, Jai-chan
Lenguaje:eng
Publicado: 2010
Materias:
Astrophysics and Astronomy
Acceso en línea:https://dx.doi.org/10.1088/1475-7516/2011/04/004
http://cds.cern.ch/record/1306614
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author Gong, Jinn-Ouk
Noh, Hyerim
Hwang, Jai-chan
author_facet Gong, Jinn-Ouk
Noh, Hyerim
Hwang, Jai-chan
author_sort Gong, Jinn-Ouk
collection CERN
description We study non-linear contributions to the power spectrum of the curvature perturbation on super-horizon scales, produced during slow-roll inflation driven by a canonical single scalar field. We find that on large scales the linear power spectrum completely dominates and leading non-linear corrections remain totally negligible, indicating that we can safely rely on linear perturbation theory to study inflationary power spectrum. We also briefly comment on the infrared and ultraviolet behaviour of the non-linear corrections.
id cern-1306614
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2010
record_format invenio
spelling cern-13066142023-03-14T18:51:00Zdoi:10.1088/1475-7516/2011/04/004http://cds.cern.ch/record/1306614engGong, Jinn-OukNoh, HyerimHwang, Jai-chanNon-linear corrections to inflationary power spectrumAstrophysics and AstronomyWe study non-linear contributions to the power spectrum of the curvature perturbation on super-horizon scales, produced during slow-roll inflation driven by a canonical single scalar field. We find that on large scales the linear power spectrum completely dominates and leading non-linear corrections remain totally negligible, indicating that we can safely rely on linear perturbation theory to study inflationary power spectrum. We also briefly comment on the infrared and ultraviolet behaviour of the non-linear corrections.We study non-linear contributions to the power spectrum of the curvature perturbation on super-horizon scales, produced during slow-roll inflation driven by a canonical single scalar field. We find that on large scales the linear power spectrum completely dominates and leading non-linear corrections remain totally negligible, indicating that we can safely rely on linear perturbation theory to study inflationary power spectrum. We also briefly comment on the infrared and ultraviolet behaviour of the non-linear corrections.arXiv:1011.2572CERN-PH-TH-2010-267CERN-PH-TH-2010-267oai:cds.cern.ch:13066142010-11-12
spellingShingle Astrophysics and Astronomy
Gong, Jinn-Ouk
Noh, Hyerim
Hwang, Jai-chan
Non-linear corrections to inflationary power spectrum
title Non-linear corrections to inflationary power spectrum
title_full Non-linear corrections to inflationary power spectrum
title_fullStr Non-linear corrections to inflationary power spectrum
title_full_unstemmed Non-linear corrections to inflationary power spectrum
title_short Non-linear corrections to inflationary power spectrum
title_sort non-linear corrections to inflationary power spectrum
topic Astrophysics and Astronomy
url https://dx.doi.org/10.1088/1475-7516/2011/04/004
http://cds.cern.ch/record/1306614
work_keys_str_mv AT gongjinnouk nonlinearcorrectionstoinflationarypowerspectrum
AT nohhyerim nonlinearcorrectionstoinflationarypowerspectrum
AT hwangjaichan nonlinearcorrectionstoinflationarypowerspectrum

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