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Pis'ma v Zh. Èksper. Teoret. Fiz., 2005, Volume 82, Issue 4, Pages 187–191 (Mi jetpl1530)  

This article is cited in 58 scientific papers (total in 58 papers)

GRAVITY, ASTROPHYSICS

Inflaton field potential producing the exactly flat spectrum of adiabatic perturbations

A. A. Starobinsky

Landau Institute for Theoretical Physics RAS

Abstract: Presented is the exact solution of the problem of finding a potential of an inflaton scalar field for which adiabatic perturbations generated during a de Sitter (inflationary) stage in the early Universe have the exactly flat (or, the Harrison-Zeldovich) initial spectrum. This solution lies outside the scope of the slow-roll approximation and higher-order corrections to it. The potential found depends on two arbitrary physical constants, one of those determines an amplitude of perturbations. For small (zero) values of the other constant, a long (infinite) inflationary stage with slow rolling of the inflaton field exists.

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English version:
Journal of Experimental and Theoretical Physics Letters, 2005, 82:4, 169–173

Bibliographic databases:

Document Type: Article
PACS: 98.80.-k
Received: 07.07.2005
Language: English

Citation: A. A. Starobinsky, “Inflaton field potential producing the exactly flat spectrum of adiabatic perturbations”, Pis'ma v Zh. Èksper. Teoret. Fiz., 82:4 (2005), 187–191; JETP Letters, 82:4 (2005), 169–173

Citation in format AMSBIB
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\by A.~A.~Starobinsky
\paper Inflaton field potential producing the exactly flat spectrum of adiabatic perturbations
\jour Pis'ma v Zh. \`Eksper. Teoret. Fiz.
\yr 2005
\vol 82
\issue 4
\pages 187--191
\mathnet{http://mi.mathnet.ru/jetpl1530}
\transl
\jour JETP Letters
\yr 2005
\vol 82
\issue 4
\pages 169--173
\crossref{https://doi.org/10.1134/1.2121807}
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