No-Scale Supergravity Realization of the Starobinsky Model of Inflation

John Ellis, Dimitri V. Nanopoulos, and Keith A. Olive

Phys. Rev. Lett. 111, 111301 – Published 9 September 2013; Erratum Phys. Rev. Lett. 111, 129902 (2013)

Abstract

We present a model for cosmological inflation based on a no-scale supergravity sector with an $SU (2, 1) / SU (2) \times U (1)$ Kähler potential, a single modulus $T$ , and an inflaton superfield $Φ$ described by a Wess-Zumino model with superpotential parameters ( $μ$ , $λ$ ). When $T$ is fixed, this model yields a scalar spectral index $n_{s}$ and a tensor-to-scalar ratio $r$ that are compatible with the Planck measurements for values of $λ ≃ μ / 3 M_{P}$ . For the specific choice $λ = μ / 3 M_{P}$ , the model is a no-scale supergravity realization of the $R + R^{2}$ Starobinsky model.

Received 8 May 2013
Corrected 12 September 2013

DOI:https://doi.org/10.1103/PhysRevLett.111.111301

Corrections

12 September 2013

Erratum

Publisher’s Note: No-Scale Supergravity Realization of the Starobinsky Model of Inflation [Phys. Rev. Lett. 111, 111301 (2013)]

John Ellis, Dimitri V. Nanopoulos, and Keith A. Olive

Phys. Rev. Lett. 111, 129902 (2013)

Authors & Affiliations

John Ellis^1,*, Dimitri V. Nanopoulos^2,†, and Keith A. Olive^3,‡

¹Department of Physics, Theoretical Particle Physics and Cosmology Group, King’s College London, London WC2R 2LS, United Kingdom and Theory Division, CERN, CH-1211 Geneva 23, Switzerland
²George P. and Cynthia W. Mitchell Institute for Fundamental Physics and Astronomy, Texas A&M University, College Station, Texas 77843, USA, Astroparticle Physics Group, Houston Advanced Research Center (HARC), Mitchell Campus, Woodlands, Texas 77381, USA, and Division of Natural Sciences, Academy of Athens, 28 Panepistimiou Avenue, Athens 10679, Greece
³William I. Fine Theoretical Physics Institute, School of Physics and Astronomy, University of Minnesota, Minneapolis, Minnesota 55455, USA

^*John.Ellis@cern.ch
^†dimitri@physics.tamu.edu
^‡olive@physics.umn.edu

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Vol. 111, Iss. 11 — 13 September 2013

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