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arxiv: gr-qc/0103043 · v1 · submitted 2001-03-13 · 🌀 gr-qc

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1-Loop Divergences of Quantum Gravity Using Conformal Parametrization

G. de Berredo-Peixoto , A.B. Penna-Firme , I.L. Shapiro
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classification 🌀 gr-qc
keywords conformaldivergencesgaugegravityquantumfixingmetricparametrization
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We calculate the one-loop divergences for quantum gravity with cosmological constant, using new parametrization of quantum metric. The conformal factor of the metric is treated as an independent variable. As a result the theory possesses an additional degeneracy and one needs an extra conformal gauge fixing. We verify the on shell independence of the divergences from the parameter of the conformal gauge fixing, and find a special conformal gauge in which the divergences coincide with the ones obtained by t'Hooft and Veltman (1974). Using conformal invariance of the counterterms one can restore the divergences for the conformal metric-scalar gravity.

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  1. Quantum gravity and matter fields in a general background gauge

    hep-th 2026-03 unverdicted novelty 6.0

    One-loop effective action for quantum gravity plus matter is computed off-shell in a general background gauge, shown to be gauge-independent on-shell per the DeWitt-Kallosh theorem, and used to establish non-renormali...