Ultraviolet regularity from quantum gravitational indefinite causal structure
General Relativity and Quantum Cosmology
2020-03-03 v1 High Energy Physics - Theory
Quantum Physics
Abstract
Indefinite causal structure is generically present in theories of quantum gravity admitting a path integral formulation. We show that summing over causal structures eliminates ultraviolet divergences of matter QFT and resolves spacetime singularities using the non-perturbative World Quantum Gravity approach. Independent information-theoretic and model-independent considerations suggest that the mechanism of ultraviolet regularization by indefinite causal structure also applies to other theories of quantum gravity.
Cite
@article{arxiv.2003.00562,
title = {Ultraviolet regularity from quantum gravitational indefinite causal structure},
author = {Ding Jia},
journal= {arXiv preprint arXiv:2003.00562},
year = {2020}
}
Comments
5 pages, 2 figures. Comments are welcome!