Inflationary prediction for primordial non-gaussianity = La prediccion inflacionaria acerca de la no-gaussianidad primordial

We extend the Infinite N formalism so that it gives all of the stochastic properties of the primordial curvature perturbation if the initial ?eld perturbations are Gaussian. The calculation requires only the knowledge of some family of unperturbed universes. A formula is given for the normalization...

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Autor Principal: Lyth, David H.; Rodríguez García, Yeinzon
Formato: Artículo (Article)
Lenguaje:Desconocido (Unknown)
Publicado: Physical Review Letters; Vol. 95, No. 12 2005
Materias:
Acceso en línea:http://babel.banrepcultural.org/cdm/ref/collection/p17054coll23/id/622
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spelling ir-p17054coll23-6222020-09-28 Inflationary prediction for primordial non-gaussianity = La prediccion inflacionaria acerca de la no-gaussianidad primordial Lyth, David H.; Rodríguez García, Yeinzon We extend the Infinite N formalism so that it gives all of the stochastic properties of the primordial curvature perturbation if the initial ?eld perturbations are Gaussian. The calculation requires only the knowledge of some family of unperturbed universes. A formula is given for the normalization fNL of the bispectrum of, which is the main signal of non-Gaussianity. Examples of the use of the formula are given, and its relation to cosmological perturbation theory is explained. Cosmología; Física; Inflación; Teorema de Gauss Ciencias naturales y matemáticas; Ciencias naturales y matemáticas / Física 2005 Physical Review Letters; Vol. 95, No. 12 PDF Artículo ENG - Inglés Colfuturo © Derechos reservados del autor http://babel.banrepcultural.org/cdm/ref/collection/p17054coll23/id/622
institution Biblioteca Virtual Banco de la República - Colecciones digitales
collection Custom
language Desconocido (Unknown)
topic Cosmología; Física; Inflación; Teorema de Gauss
Ciencias naturales y matemáticas; Ciencias naturales y matemáticas / Física
spellingShingle Cosmología; Física; Inflación; Teorema de Gauss
Ciencias naturales y matemáticas; Ciencias naturales y matemáticas / Física
Lyth, David H.; Rodríguez García, Yeinzon
Inflationary prediction for primordial non-gaussianity = La prediccion inflacionaria acerca de la no-gaussianidad primordial
description We extend the Infinite N formalism so that it gives all of the stochastic properties of the primordial curvature perturbation if the initial ?eld perturbations are Gaussian. The calculation requires only the knowledge of some family of unperturbed universes. A formula is given for the normalization fNL of the bispectrum of, which is the main signal of non-Gaussianity. Examples of the use of the formula are given, and its relation to cosmological perturbation theory is explained.
format Artículo (Article)
author Lyth, David H.; Rodríguez García, Yeinzon
author_facet Lyth, David H.; Rodríguez García, Yeinzon
author_sort Lyth, David H.; Rodríguez García, Yeinzon
title Inflationary prediction for primordial non-gaussianity = La prediccion inflacionaria acerca de la no-gaussianidad primordial
title_short Inflationary prediction for primordial non-gaussianity = La prediccion inflacionaria acerca de la no-gaussianidad primordial
title_full Inflationary prediction for primordial non-gaussianity = La prediccion inflacionaria acerca de la no-gaussianidad primordial
title_fullStr Inflationary prediction for primordial non-gaussianity = La prediccion inflacionaria acerca de la no-gaussianidad primordial
title_full_unstemmed Inflationary prediction for primordial non-gaussianity = La prediccion inflacionaria acerca de la no-gaussianidad primordial
title_sort inflationary prediction for primordial non-gaussianity = la prediccion inflacionaria acerca de la no-gaussianidad primordial
publisher Physical Review Letters; Vol. 95, No. 12
publishDate 2005
url http://babel.banrepcultural.org/cdm/ref/collection/p17054coll23/id/622
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score 12,131701