Why is quantum gravity so difficult (compared to QCD)?
High Energy Physics - Theory
2020-03-18 v3 General Relativity and Quantum Cosmology
High Energy Physics - Lattice
High Energy Physics - Phenomenology
Abstract
Gravity is difficult to quantize. This is a well-known fact but its reason is given simply by non-renormalizability of the Newton constant and little is discussed why among many quantum gauge theories, gravity is special. In this essay we try to treat the gravity as one of many gauge theories, and discuss how it is special and why it is difficult to quantize.
Cite
@article{arxiv.1811.11577,
title = {Why is quantum gravity so difficult (compared to QCD)?},
author = {Hidenori Fukaya},
journal= {arXiv preprint arXiv:1811.11577},
year = {2020}
}
Comments
14 pages, misreading counting of degrees of freedom under the vierbein postulate corrected