Speaker
Prof.
Sergei Ketov
(Tokyo Metropolitan University, Japan)
Description
Inflationary (slow-roll) dynamics in the gravity theory with a non-minimal scalar-curvature coupling can be equivalent to that in the certain f(R) gravity theory. We briefly review that correspondence and extend it to N=1 supergravity. The nonminimal coupling in supergravity is rewritten in terms of the standard (minimal) N=1 matter-coupled supergravity, by using their manifestly supersymmetric formulations in curved superspace. The equivalence relation between the supergravity with the nonminimal scalar-curvature coupling and the F(R) supergravity (ie. the N=1 locally
supersymmetric extension of f(R) gravity) during the slow-roll inflation is established
in the manifestly supersymmetric way (via curved superspace).
Primary author
Prof.
Sergei Ketov
(Tokyo Metropolitan University, Japan)
Co-author
Prof.
Alexei Starobinsky
(Landau Institute, Moscow)
