Inflection point inflation and dark energy in supergravity

Guo, Zong-Kuan; Gao, Tie-Jun

China

Abstract

We consider an inflection point inflationary model in supergravity with a single chiral superfield and show that the predicted values of the scalar spectral index and tensor-to-scalar ratio are consistent with the Planck 2015 results. In this model supersymmetry is strongly broken after inflation, which results in a non-supersymmetry de Sitter vacuum responsible for the recent accelerated expansion of the Universe.

2015 Physical Review D
Planck 12