Starobinsky inflation from new-minimal supergravity

4th Symposium on Prospects in the Physics of Discrete Symmetries

Farakos, Fotis^1

Institute for Theoretical Physics, Masaryk University, Brno

611 37, Czech Republic^1

关键词: Higher-order;    Initial conditions;    Minimal supergravity;    Scalar fields;    Single-field model;    Supergravity;    Superspace;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/631/1/012088/pdf
DOI  :  10.1088/1742-6596/631/1/012088

来源: IOP

【 摘 要 】

In the new-minimal supergravity formulation we present the embedding of the R + R2Starobinsky model of inflation. Starting from the superspace action we perform the projection to component fields and identify the Starobinsky model in the bosonic sector. Since there exist no other scalar fields, this is by construction a single field model. This higher curvature supergravity also gives rise to a propagating massive vector. Finally we comment on the issues of higher order corrections and initial conditions.