Constraints on Inflation in Einstein-Brans-Dicke Frame

Abstract

The density perturbation during inflation seeds the large scale structure. We consider both new inflation-type and chaotic inflation-type potentials in the framework of Einstein-Brans-Dicke gravity. The density perturbation gives strong constraints on the parameters in these potentials. For both potentials, the constraints are not much different from those obtained in the original inflationary models by using of Einstein gravity.

6 pages, Revtex file, typos added

References in corpus (3)

• Scalar-Tensor Cosmologies and their Late Time Evolution
• Imprints of the Metrically-coupled Dilaton on Density Perturbations in Inflationary Cosmology
• Extended Inflation with an Exponential Potential

Cited by in corpus (6)

• Encyclopaedia Inflationaris
• Does accelerating universe indicates Brans-Dicke theory
• Dilaton assisted two-field inflation from no-scale supergravity
• Testing theories of Gravity and Supergravity with inflation and observations of the cosmic microwave background
• Holographic inflation and holographic dark energy from entropy of the anti-de Sitter black hole
• New inflationary exact solution from Lie symmetries