# Background independent field quantization with sequences of gravity-coupled approximants. II. Metric fluctuations

@article{Becker2021BackgroundIF, title={Background independent field quantization with sequences of gravity-coupled approximants. II. Metric fluctuations}, author={Maximilian Becker and Martin Reuter}, journal={Physical Review D}, year={2021} }

We apply the new quantization scheme outlined in Phys. Rev. D102 (2020) 125001 to explore the influence which quantum vacuum fluctuations of the spacetime metric exert on the universes of Quantum Einstein Gravity, which is regarded an effective theory here. The scheme promotes the principle of Background Independence to the level of the regularized precursors of a quantum field theory ("approximants") and severely constrains admissible regularization schemes. Without any tuning of parameters…

## 3 Citations

AdS/CFT and dS/CFT correspondences emerging from Asymptotic Safety ?

- Mathematics
- 2022

Quantum Einstein Gravity (QEG), nonperturbatively renormalized by means of a certain asymptotically safe renormalization group (RG) trajectory, is explored by solving its scale dependent eﬀective…

The spectral geometry of de Sitter space in asymptotic safety

- PhysicsJournal of High Energy Physics
- 2022

Abstract
Within the functional renormalization group approach to Background Independent quantum gravity, we explore the scale dependent effective geometry of the de Sitter solution dS4. The…

Background independent field quantization with sequences of gravity-coupled approximants

- PhysicsPhysical Review D
- 2020

We outline, test, and apply a new scheme for nonpertubative analyses of quantized field systems in contact with dynamical gravity. While gravity is treated classically in the present paper, the…

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