Higher derivative relativistic quantum gravity

TL;DR

This paper explores a higher derivative relativistic quantum gravity model with quadratic curvature terms, deriving new Lagrangian and propagator expressions, and argues for its potential as a fundamental quantum gravity theory.

Contribution

It introduces new formulations for the Lagrangian and graviton propagator in quadratic curvature gravity, proposing it as a promising candidate for quantum gravity.

Findings

Derived new Lagrangian expressions

Obtained graviton propagator within dimensional regularization

Argued for the model's viability as fundamental quantum gravity

Abstract

Relativistic quantum gravity with the action including terms quadratic in the curvture tensor is analyzed. We derive new expressions for the corresponding Lagrangian and the graviton propagator within dimensional regularization. We argue that the considered model is a good candidate for the fundamental quantum theory of gravitation.