Gravitational couplings of the inflaton in extended inflation

Details Gravitational couplings of the inflaton in extended inflation Gravitational couplings of the inflaton in extended inflation

Jul 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990phrvl..65...17h&link_type=abstract

Physical Review Letters (ISSN 0031-9007), vol. 65, July 2, 1990, p. 17-20. Previously announced in STAR as N90-22504.

Physics

96

Bubbles, Cosmology, Gravitational Fields, Inflating, Mathematical Models, String Theory, Couplings, Gravitational Effects, Scalars, Universe, Vacuum, Walls

Scientific paper

A new extended inflationary scenario evading the difficulties of the original model is discussed. The 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 the model is the observation that the coupling of the inflaton to the Jordan-Brans-Dicke field is expected to be different from that of visible matter.

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