TY - JOUR
T1 - Prescription for successful extended inflation
AU - La, Daile
AU - Steinhardt, Paul J.
AU - Bertschinger, Edmund W.
N1 - Copyright:
Copyright 2014 Elsevier B.V., All rights reserved.
PY - 1989/11/9
Y1 - 1989/11/9
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
UR - http://www.scopus.com/inward/record.url?scp=17044371669&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=17044371669&partnerID=8YFLogxK
U2 - 10.1016/0370-2693(89)90205-0
DO - 10.1016/0370-2693(89)90205-0
M3 - Article
AN - SCOPUS:17044371669
SN - 0370-2693
VL - 231
SP - 231
EP - 236
JO - Physics Letters B
JF - Physics Letters B
IS - 3
ER -