Galaxies 2013, 1(2), 96-106; doi:10.3390/galaxies1020096

Conformally Coupled Inflation

Physics Department and STAR Research Cluster, Bishop's University, 2600 College St., Sherbrooke, Qu├ębec J1M 1Z7, Canada
Received: 29 June 2013; in revised form: 19 July 2013 / Accepted: 19 July 2013 / Published: 30 July 2013
(This article belongs to the Special Issue Cosmology with Fluid Components)
PDF Full-text Download PDF Full-Text [194 KB, uploaded 30 July 2013 10:36 CEST]
Abstract: A massive scalar field in a curved spacetime can propagate along the light cone, a causal pathology, which can, in principle, be eliminated only if the scalar couples conformally to the Ricci curvature of spacetime. This property mandates conformal coupling for the field driving inflation in the early universe. During slow-roll inflation, this coupling can cause super-acceleration and, as a signature, a blue spectrum of primordial gravitational waves.
Keywords: inflation; non-minimal coupling; early universe

Article Statistics

Load and display the download statistics.

Citations to this Article

Cite This Article

MDPI and ACS Style

Faraoni, V. Conformally Coupled Inflation. Galaxies 2013, 1, 96-106.

AMA Style

Faraoni V. Conformally Coupled Inflation. Galaxies. 2013; 1(2):96-106.

Chicago/Turabian Style

Faraoni, Valerio. 2013. "Conformally Coupled Inflation." Galaxies 1, no. 2: 96-106.

Galaxies EISSN 2075-4434 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert