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arxiv: hep-th/0312114 · v2 · submitted 2003-12-10 · ✦ hep-th · hep-ph

Fixed points of quantum gravity

classification ✦ hep-th hep-ph
keywords gravityquantumdimensionsfixedanalyticalarbitrarydiscussedeinstein-hilbert
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Euclidean quantum gravity is studied with renormalisation group methods. Analytical results for a non-trivial ultraviolet fixed point are found for arbitrary dimensions and gauge fixing parameter in the Einstein-Hilbert truncation. Implications for quantum gravity in four dimensions are discussed.

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    Quantum gravity contributions to the beta functions of gauge and Yukawa couplings are derived via the Schwinger proper-time flow equation; their dependence on gauge fixing and regulators is quantified at gravity's int...