Limiting fluctuations in quantum gravity to diffeomorphisms

  title={Limiting fluctuations in quantum gravity to diffeomorphisms},
  author={Brian A. Slovick},
  journal={Modern Physics Letters A},
  • B. Slovick
  • Published 26 August 2021
  • Physics
  • Modern Physics Letters A
Within the background field formalism of quantum gravity, I show that if the quantum fluctuations are limited to diffeomorphic gauge transformations rather than the physical degrees of freedom, as in conventional quantum field theory, all the quantum corrections vanish on shell and the effective action is equivalent to the classical action. In principle, the resulting theory is finite and unitary, and requires no renormalization. I also show that this is the unique parameterization that renders… Expand


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