No-Scale Supergravity Realization of the Starobinsky Model of Inflation

作者：Ellis, John^*; Nanopoulos, Dimitri V.; Olive, Keith A.

来源：Physical Review Letters, 2013, 111(11): 111301.

DOI：10.1103/PhysRevLett.111.111301

• CHAOTIC INFLATION
• PRIMORDIAL INFLATION
• LIGHT

We present a model for cosmological inflation based on a no-scale supergravity sector with an SU(2, 1)/SU(2) x U(1) Kahler potential, a single modulus T, and an inflaton superfield Phi described by a Wess-Zumino model with superpotential parameters (mu, lambda). 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 lambda similar or equal to mu/3M(P). For the specific choice lambda = mu/3M(P), the model is a no-scale supergravity realization of the R + R-2 Starobinsky model.

• 出版日期2013-9-9