Semiclassical approximation of the Wheeler-DeWitt equation: arbitrary orders and the question of unitarity

DOI10.1007/s10714-018-2390-4zbMath1392.83034arXiv1802.01422OpenAlexW2964308291WikidataQ129786512 ScholiaQ129786512MaRDI QIDQ725330

Claus Kiefer, David Wichmann

Publication date: 1 August 2018

Published in: General Relativity and Gravitation (Search for Journal in Brave)

Full work available at URL: https://arxiv.org/abs/1802.01422

zbMATH Keywords

semiclassical approximationWheeler-DeWitt equationBorn-Oppenheimer approximationunitarity violationcanonical quantum gravity

Mathematics Subject Classification ID

Quantization of the gravitational field (83C45) Semiclassical techniques, including WKB and Maslov methods applied to problems in quantum theory (81Q20)

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Quantum gravitational corrections to the inflationary power spectra in scalar–tensor theories, Quantum gravitational corrections from the Wheeler–DeWitt equation for scalar–tensor theories, Cartan rediscovered in general relativity, Beyond the Born rule in quantum gravity

Cites Work

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