We construct inflationary models in the context of supergravity with orthogonal nilpotent superfields [Ferrara, Phys. Rev. D 93, 043516 (2016)]. When local supersymmetry is gauge-fixed in the unitary gauge, these models describe theories with only a single real scalar (the inflaton), a graviton and a gravitino. Critically, there is no inflatino, no sgoldstino, and no sinflaton in these models. This dramatically simplifies cosmological models which can simultaneously describe inflation, dark energy and SUSY breaking.
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)