Is imaginary Starobinsky model real?

The imaginary Starobinsky model

(2014) S. Ferrara et al.   FORTSCHRITTE DER PHYSIK-PROGRESS OF PHYSICS

Detection ofB-Mode Polarization at Degree Angular Scales by BICEP2

(2014) P. A. R. Ade et al.   PHYSICAL REVIEW LETTERS

Universal Attractor for Inflation at Strong Coupling

(2014) Renata Kallosh et al.   PHYSICAL REVIEW LETTERS

Cosmological attractor models and higher curvature supergravity

(2014) Sergio Cecotti et al.   JOURNAL OF HIGH ENERGY PHYSICS

Higher order corrections in minimal supergravity models of inflation

(2013) Sergio Ferrara et al.   JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS

Superconformal generalizations of the Starobinsky model

(2013) Renata Kallosh et al.   JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS

On the Starobinsky model of inflation from supergravity

(2013) F. Farakos et al.   NUCLEAR PHYSICS B

Minimal supergravity models of inflation

(2013) Sergio Ferrara et al.   PHYSICAL REVIEW D

General inflaton potentials in supergravity

(2011) Renata Kallosh et al.   PHYSICAL REVIEW D

New models of chaotic inflation in supergravity

(2010) Renata Kallosh et al.   JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS