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GR: Fachverband Gravitation und Relativitätstheorie

GR 9: Quantum Field Theory in Curved Spacetime

GR 9.2: Vortrag

Dienstag, 12. März 2024, 17:50–18:10, HBR 14: HS 2

Quantum-gravitational corrections to the CMB power spectrum — •Tatevik Vardanyan and Claus Kiefer — University of Cologne, Faculty of Mathematics and Natural Sciences, Institute for Theoretical Physics, Cologne, Germany

We study the quantum-gravitational corrections to the power spectrum of a gauge- invariant inflationary scalar perturbations in a closed model of a universe. We consider canonical quantum gravity as an approach to quantizing gravity. We comment on the observability of these corrections on the primordial power spectra.

Keywords: particle creation, spinor field, Bianchi IX