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A. D. Linde, “Chaotic Inflation,” Phys. Lett. B 129
1983
Earlier work this paper cites.
A. A. Starobinsky, “A New Type of Isotropic Cosmological Models Without Singularity,” Phys. Lett. B 91
1983
Earlier work this paper cites.
A. B. Goncharov and A. D. Linde, “Chaotic Inflation in Supergravity,” Phys. Lett. B 139
1984
Earlier work this paper cites.
B. Whitt, “Fourth Order Gravity as General Relativity Plus Matter,” Phys. Lett. B 145
1984
Earlier work this paper cites.
M. Kawasaki, M. Yamaguchi and T. Yanagida, “Natural chaotic inflation in supergravity,” Phys. Rev. Lett. 85
2000
Earlier work this paper cites.
D. S. Salopek, J. R. Bond and J. M. Bardeen, “Designing density fluctuation spectra in inflation”, Phys. Rev. D40
Original
2010
Earlier work this paper cites.

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2013

Kallosh, Renata, Linde, Andrei, Roest, Diederik

Recently a broad class of superconformal inflationary models was found leading to a universal observational prediction $n_s=1-2/N$ and $r=12/N^2$.

Here we generalize this class of models by introducing a parameter $\alpha$ inversely proportional to the curvature of the inflaton Kahler manifold.
In the small curvature (large $\alpha$) limit, the observational predictions of this class of models coincide with the predictions of generic chaotic inflation models.
However, for sufficiently large curvature (small $\alpha$), the predictions converge to the universal attractor regime with $n_s=1-2/N$ and $r=12\alpha/N^2$, which corresponds to the part of the $n_s-r$ plane favored by the Planck data.

A. D. Linde, “Chaotic Inflation,” Phys. Lett. B 129
1983
Earlier work this paper cites.
A. A. Starobinsky, “A New Type of Isotropic Cosmological Models Without Singularity,” Phys. Lett. B 91
1983
Earlier work this paper cites.
A. B. Goncharov and A. D. Linde, “Chaotic Inflation in Supergravity,” Phys. Lett. B 139
1984
Earlier work this paper cites.
B. Whitt, “Fourth Order Gravity as General Relativity Plus Matter,” Phys. Lett. B 145
1984
Earlier work this paper cites.
M. Kawasaki, M. Yamaguchi and T. Yanagida, “Natural chaotic inflation in supergravity,” Phys. Rev. Lett. 85
2000
Earlier work this paper cites.
D. S. Salopek, J. R. Bond and J. M. Bardeen, “Designing density fluctuation spectra in inflation”, Phys. Rev. D40
Original
2010
Earlier work this paper cites.