A geometric bound on F-term inflation

Details A geometric bound on F-term inflation A geometric bound on F-term inflation

2012-03-13

arxiv.org/abs/1203.2909v1

Physics

High Energy Physics

High Energy Physics - Theory

13 pages

Scientific paper

We discuss a general bound on the possibility to realise inflation in any minimal supergravity with F-terms. The derivation crucially depends on the sGoldstini, the scalar field directions that are singled out by spontaneous supersymmetry breaking. The resulting bound involves both slow-roll parameters and the geometry of the K\"ahler manifold of the chiral scalars. We analyse the inflationary implications of this bound, and in particular discuss to what extent the requirements of single field and slow-roll can both be met in F-term inflation.

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