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Conformally Coupled Inflation
AbstractA 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.
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Faraoni, V. Conformally Coupled Inflation. Galaxies 2013, 1, 96-106.View more citation formats
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.