Chaotic inflation in F(R) supergravity
Sergei V. Ketov (TMU, IPMU, Tokyo, Japan)
TL;DR
This paper derives a bosonic f(R) gravity function from a chiral F(R) supergravity model, revealing an upper limit on scalar curvature and comparing it to the Starobinsky inflation model.
Contribution
It introduces the first derivation of bosonic f(R) gravity from F(R) supergravity and explores its implications for inflationary cosmology.
Findings
Existence of an upper limit (AdS bound) on scalar curvature.
A solution with zero cosmological constant.
Comparison with the Starobinsky inflation model.
Abstract
The bosonic f(R) gravity function is derived from a chiral F(R) supergravity model for the first time. We find an existence of the upper limit (or AdS bound) on the scalar curvature, as well as a solution with a vanishing cosmological constant. We compare our simple model of F(R) supergravity to the well known Starobinsky model of chaotic inflation.
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