Gravitational couplings of the inflaton in extended inflation

Richard Holman; Edward W. Kolb; Yun Wang

doi:10.1103/PhysRevLett.65.17

Gravitational couplings of the inflaton in extended inflation

Richard Holman, Edward W. Kolb, and Yun Wang

Phys. Rev. Lett. 65, 17 – Published 2 July 1990

Abstract

We discuss a new extended-inflationary scenario evading the difficulties of the original model. Our model can thermalize the energy in the bubble walls by the necessary epoch, and establish a Robertson-Walker frame in the bubble clusters. The essential new ingredient in our model is the observation that the coupling of inflaton to the Jordan-Brans-Dicke field is expected to be different from that of visible matter.

Received 12 March 1990

DOI:https://doi.org/10.1103/PhysRevLett.65.17

Authors & Affiliations

Richard Holman, Edward W. Kolb, and Yun Wang

Department of Physics, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213
NASA/Fermilab Astrophysics Center, Fermi National Accelerator Laboratory, Batavia, Illinois 60510
Department of Astronomy Astrophysics and Enrico Fermi Institute, The University of Chicago, Chicago, Illinois 60637