Inflatino-less Cosmology

John Joseph M. Carrasco (1, 2) , Renata Kallosh (3) , Andrei Linde (3)

1 IPHT - Institut de Physique Théorique - UMR CNRS 3681
2 Institute for Advanced Studies
3 Stanford Institute of Theoretical Physics and Department of Physics

We construct inflationary models in the context of supergravity with orthogonal nilpotent superfields [1]. 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.

Domains: General Relativity and Quantum Cosmology [gr-qc]

John Joseph M. Carrasco, Renata Kallosh, Andrei Linde. Inflatino-less Cosmology. Physical Review D, 2015, 93 (6), ⟨10.1103/PhysRevD.93.061301⟩. ⟨cea-01426635⟩