Prescription for successful extended inflation

Daile La; Paul J. Steinhardt; Edmund W. Bertschinger

doi:10.1016/0370-2693(89)90205-0

Prescription for successful extended inflation

Daile La
, Paul J. Steinhardt
, Edmund W. Bertschinger

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

214 Scopus citations

Abstract

Extended inflation is a new approach to inflationary cosmology based on models closely related to Brans-Dicke theory; e.g., certain induced gravity, supergravity, and superstring models. In each of these theories, the effective gravitational constant is a function of some scalar field, ø, which varies with time during the inflationary phase transition. We show that a model consistent with astrophysical and cosmological bounds must include a non-trivial potential for ø and the Brans-Dicke parameter, b, must lie in the range 1.5<b<25.

Original language	English (US)
Pages (from-to)	231-236
Number of pages	6
Journal	Physics Letters B
Volume	231
Issue number	3
DOIs	https://doi.org/10.1016/0370-2693(89)90205-0
State	Published - Nov 9 1989
Externally published	Yes

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics

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10.1016/0370-2693(89)90205-0

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abstract = "Extended inflation is a new approach to inflationary cosmology based on models closely related to Brans-Dicke theory; e.g., certain induced gravity, supergravity, and superstring models. In each of these theories, the effective gravitational constant is a function of some scalar field, {\o}, which varies with time during the inflationary phase transition. We show that a model consistent with astrophysical and cosmological bounds must include a non-trivial potential for {\o} and the Brans-Dicke parameter, b, must lie in the range 1.5",

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AU - Bertschinger, Edmund W.

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N2 - Extended inflation is a new approach to inflationary cosmology based on models closely related to Brans-Dicke theory; e.g., certain induced gravity, supergravity, and superstring models. In each of these theories, the effective gravitational constant is a function of some scalar field, ø, which varies with time during the inflationary phase transition. We show that a model consistent with astrophysical and cosmological bounds must include a non-trivial potential for ø and the Brans-Dicke parameter, b, must lie in the range 1.5

AB - Extended inflation is a new approach to inflationary cosmology based on models closely related to Brans-Dicke theory; e.g., certain induced gravity, supergravity, and superstring models. In each of these theories, the effective gravitational constant is a function of some scalar field, ø, which varies with time during the inflationary phase transition. We show that a model consistent with astrophysical and cosmological bounds must include a non-trivial potential for ø and the Brans-Dicke parameter, b, must lie in the range 1.5

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Prescription for successful extended inflation

Abstract

All Science Journal Classification (ASJC) codes

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