Cosmological properties of a generic (\cal R)^2-supergravity
arXiv:1101.0450 · doi:10.1088/1475-7516/2011/03/011
Abstract
We investigate in detail the structure of the simplest non-trivial F(\cal R)-supergravity model, whose F-function is given by a generic quadratic polynomial in terms of the scalar supercurvature (\cal R). This toy-model admits a fully explicit derivation of the corresponding f(R)-gravity functions. We apply the stability conditions for selecting the physical f(R)-gravity functions, and discuss the phenomenological prospects of F(\cal R)-supergravity in its application to cosmology.
15 pages, latex2e, no figures; minor additions, a reference added
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- Gravitino condensation, supersymmetry breaking and inflation
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