Scale Dependent Metric and Minimal Length in QEG
High Energy Physics - Theory
2008-11-26 v1 General Relativity and Quantum Cosmology
Abstract
The possibility of a minimal physical length in quantum gravity is discussed within the asymptotic safety approach. Using a specific mathematical model for length measurements ("COM microscope") it is shown that the spacetimes of Quantum Einstein Gravity (QEG) based upon a special class of renormalization group trajectories are "fuzzy" in the sense that there is a minimal coordinate separation below which two points cannot be resolved.
Keywords
Cite
@article{arxiv.hep-th/0610064,
title = {Scale Dependent Metric and Minimal Length in QEG},
author = {Martin Reuter and Jan-Markus Schwindt},
journal= {arXiv preprint arXiv:hep-th/0610064},
year = {2008}
}
Comments
10 pages, 1 figure, Talk given by M.R. at IRGAC 2006, Barcelona, Spain, July 11-15, 2006