# Barriers in Quantum Gravity

**Authors:** Jan Ambjorn  
**arXiv:** [hep-th/9408129](https://arxiv.org/abs/hep-th/9408129)  
**Date:** 1994-08-23  
**Summary page:** https://www.summarizepaper.com/en/paper/hep-th--9408129v1/

## Abstract

I discuss recent progress in our understanding of two barriers in quantum gravity: $c > 1$ in the case of 2d quantum gravity and $D > 2$ in the case of Euclidean Einstein-Hilbert gravity formulated in space-time dimensions $D >2$.