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.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
