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The phase diagram of quantum gravity from diffeomorphism-invariant RG-flows

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arxiv 1203.4207 v1 pith:I3OIFPC4 submitted 2012-03-19 hep-th gr-qc

Ivan Donkin , Jan M. Pawlowski This is my paper
classification hep-thgr-qc
keywords gravityfixedpointquantumdiagramdiffeomorphism-invariantfullymetric
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We evaluate the phase diagram of quantum gravity within a fully diffeomorphism-invariant renormalisation group approach. The construction is based on the geometrical or Vilkovisky-DeWitt effective action. We also resolve the difference between the fluctuation metric and the background metric. This allows for fully background-independent flows in gravity. The results provide further evidence for the ultraviolet fixed point scenario in quantum gravity with quantitative changes for the fixed point physics. We also find a stable infrared fixed point related to classical Einstein gravity. Implications and possible extensions are discussed.

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Cited by 5 Pith papers

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