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GR: Fachverband Gravitation und Relativitätstheorie

GR 15: Quantum Gravity II

GR 15.3: Talk

Friday, March 23, 2018, 09:30–09:45, NW-Bau - HS3

Quantum gravitational correction from the Wheeler-DeWitt equation — Chrsitian Steinwachs and •Matthijs van der Wild — Physikalisches Institut, Universität Freiburg, Germany

In recent years, inflationary scalar field models with a strong non-minimal coupling to gravity have gained much attention.

In particular, the model of non-minimal Higgs inflation, where the inflaton field is identified with the Standard Model Higgs field, allows for a unified description of cosmology and particle physics.

We perform the canonical quantization of a general scalar-tensor theory and derive the first quantum gravitational corrections following from a semi-classical expansion of the Wheeler-DeWitt equation.

We discuss how a strong non-minimal coupling affects these corrections and give a brief estimate of their possible impact on cosmological observations.