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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Physical Review Letters; Vol. 95, No. 12
2005
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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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1682460002906800128 |
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12,131701 |