Quantum gravitational corrections from the Wheeler-DeWitt equation for scalar-tensor theories
Autor: | Steinwachs, Christian F., van der Wild, Matthijs L. |
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Rok vydání: | 2017 |
Předmět: | |
Druh dokumentu: | Working Paper |
DOI: | 10.1088/1361-6382/aac587 |
Popis: | 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. The non-minimal coupling of the scalar field to gravity induces a derivative coupling between the scalar field and the gravitational degrees of freedom, which prevents a direct application of the expansion scheme. We address this technical difficulty by transforming the theory from the Jordan frame to the Einstein frame. We find that a large non-minimal coupling can have strong effects on the quantum gravitational correction terms. We briefly discuss these effects in the context of the specific model of Higgs inflation. Comment: 33 pages, no figures, typos corrected, comments and references added, published in CQG |
Databáze: | arXiv |
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