Academic Journals Database
Disseminating quality controlled scientific knowledge

Conformally Coupled Inflation

Author(s): Valerio Faraoni

Journal: Galaxies
ISSN 2075-4434

Volume: 1;
Issue: 2;
Start page: 96;
Date: 2013;
Original page

Keywords: inflation | non-minimal coupling | early universe

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.
RPA Switzerland

RPA Switzerland

Robotic process automation


Tango Jona
Tangokurs Rapperswil-Jona