Renormalizability of Massive Gravity in Three Dimensions

TL;DR

This paper demonstrates that a specific massive gravity theory in three dimensions is both renormalizable and unitary, providing a valuable toy model for studying quantum gravity.

Contribution

It establishes the renormalizability and unitarity of a recent massive gravity model with higher derivatives in three dimensions.

Findings

The theory is proven to be renormalizable.

The theory maintains unitarity.

It serves as a useful toy model for quantum gravity.

Abstract

We discuss renormalizability of a recently established, massive gravity theory with particular higher derivative terms in three space-time dimensions. It is shown that this massive gravity is certainly renormalizable as well as unitary, so it gives us a physically interesting toy model of perturbative quantum gravity in three dimensions.