A geometric bound on F-term inflation
arXiv:1203.2909 · doi:10.1007/JHEP09(2012)021
Abstract
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 Kähler 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.
14 pages, improved analysis, references added, matches published version
References in corpus (9)
- Observational Signatures and Non-Gaussianities of General Single Field Inflation
- String Cosmology: A Review
- Inflationary Constraints on Type IIA String Theory
- Locally stable non-supersymmetric Minkowski vacua in supergravity
- Constraints for the existence of flat and stable non-supersymmetric vacua in supergravity
- Universality in D-brane Inflation
- A Minimal Inflation Scenario
- No metastable de Sitter vacua in N=2 supergravity with only hypermultiplets
- Phenomenology of the minimal inflation scenario: inflationary trajectories and particle production
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- Sound Speed of Primordial Fluctuations in Supergravity Inflation
- Kahler potentials for Planck inflation
- Accelerated Universes from type IIA Compactifications
- Untangling features in the primordial spectra
- Cosmic inflation in a landscape of heavy-fields
- General sGoldstino Inflation
- Perturbative Stability along the Supersymmetric Directions of the Landscape
- Sgoldstino-less inflation and low energy SUSY breaking
- B-modes and the sound speed of primordial fluctuations