Conceptual issues in combining general relativity and quantum theory

TL;DR

This paper discusses the fundamental conflicts between general relativity and quantum theory, critiques the limitations of quantum field theory in describing gravity, and reviews potential features of a successful quantum gravity theory.

Contribution

It highlights conceptual conflicts, critiques current quantum field theory approaches, and reviews possible features of a correct quantum gravity theory.

Findings

Current QFT language is inadequate for gravity

Identifies key conflicts between GR and quantum theory

Reviews potential features of quantum gravity

Abstract

Points of conflict between the principles of general relativity and quantum theory are highlighted. I argue that the current language of QFT is inadequete to deal with gravity and review attempts to identify some of the features which are likely to present in the correct theory of quantum gravity.