Gauge Theory of Gravity

TL;DR

This paper develops a quantum gauge theory of gravity based on local gauge invariance, unifying classical and relativistic gravity, and claims to be renormalizable, addressing key issues in quantum gravity.

Contribution

It introduces a gauge field formulation of gravity that reproduces classical and relativistic gravity and claims to be a renormalizable quantum theory.

Findings

Reproduces Newton's gravity in leading order

Recovers Einstein's general relativity in first order vacuum

Proposes a renormalizable quantum gravity model

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 appears as gauge field. The problems on quantization and renormalization of the theory are also discussed in this paper. In leading order approximation, the gravitational gauge field theory gives out classical Newton's theory of gravity. In first order approximation and for vacuum, the gravitational gauge field theory gives out Einstein's general theory of relativity. This quantum gauge theory of gravity is a renormalizable quantum theory.