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 Kaehler 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.
|Title of host publication||Proceedings, 9th Mexican School on Gravitation and Mathematical Physics: Cosmology for the XXI Century: Inflation, Dark Matter and Dark Energy (DGFM-SMF) : Puerto Vallarta, Jalisco, Mexico, December 3-7, 2012|
|Publisher||AIP Conference proceedings|
|Volume||1548 ; Issue 1|
|Publication status||Published - 2013|