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arXiv · 1203.0805

Inflation and non-minimal scalar-curvature coupling in gravity and supergravity

Sergei V. Ketov·Alexei A. Starobinsky
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Abstract

Inflationary slow-roll dynamics in Einstein gravity with a non-minimal scalar-curvature coupling can be equivalent to that in the certain f(R) gravity theory. We review the correspondence and extend it to N=1 supergravity. The non-minimal coupling in supergravity is rewritten in terms of the standard (`minimal') N=1 matter-coupled supergravity by using curved superspace. The established equivalence between two different inflationary theories means the same inflaton scalar potential, and does not imply the same post-inflationary dynamics and reheating.

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Sergei V. Ketov, Alexei A. Starobinsky. 2012-09-04. Inflation and non-minimal scalar-curvature coupling in gravity and supergravity. https://doi.org/10.1088/1475-7516%2F2012%2F08%2F022

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