Quantum Gauge Theory of Gravity

TL;DR

This paper develops a quantum gauge theory of gravity based on local gauge invariance, which reproduces classical gravity and Einstein's equations, and is renormalizable, offering a potential quantum gravity framework.

Contribution

It introduces a renormalizable quantum gauge theory of gravity that aligns with classical and relativistic gravity predictions.

Findings

Reproduces Newton's gravity in leading order

Derives Einstein's field equations with cosmological constant

Predicts classical tests of gravity accurately

Abstract

The quantum gravity is formulated based on principle of local gauge invariance. The model discussed in this paper has local gravitational gauge symmetry and gravitational field is represented by gauge field. In leading order approximation, it gives out classical Newton's theory of gravity. It can also give out Einstein's field equation with cosmological constant. For classical tests, it gives out the same theoretical predictions as those of general relativity. This quantum gauge theory of gravity is a renormalizable quantum theory.