Quantum gravity from the point of view of locally covariant quantum field theory

TL;DR

This paper develops a background-independent, covariant perturbative quantum gravity framework using locally covariant quantum field theory and the Batalin-Vilkovisky formalism, treating gravity as an effective theory at large scales.

Contribution

It introduces a novel background-independent construction of perturbative quantum gravity within the locally covariant QFT framework, utilizing the renormalized Batalin-Vilkovisky formalism.

Findings

Constructed a generally covariant quantum gravity model

Achieved a background-independent formulation

Interpreted the theory as an effective large-scale description

Abstract

We construct perturbative quantum gravity in a generally covariant way. In particular our construction is background independent. It is based on the locally covariant approach to quantum field theory and the renormalized Batalin-Vilkovisky formalism. We do not touch the problem of nonrenormalizability and interpret the theory as an effective theory at large length scales.