Hilltop Supernatural Inflation

Abstract

In this talk, I will explain how to reduce the spectral index to be n_s=0.96 for supernatural inflation. I will also show the constraint to the reheating temperature from Big Bang Nucleosynthesis of both thermal and non-thermal gravitino production.

Comments: 5 pages, 4 figures, talk given at YKIS2010 symposium in Kyoto University, to be published as a volume of Progress of Theoretical Physics, Supplement