How many quanta are there in a quantum spacetime?
General Relativity and Quantum Cosmology
2015-08-26 v1
Abstract
Following earlier insights by Livine and Terno, we develop a technique for describing quantum states of the gravitational field in terms of coarse grained spin networks. We show that the number of nodes and links and the values of the spin depend on the observables chosen for the description of the state. Hence the question in the title of this paper is ill posed, unless further information about what is been measured is given.
Cite
@article{arxiv.1404.1750,
title = {How many quanta are there in a quantum spacetime?},
author = {Seramika Ariwahjoedi and Jusak Sali Kosasih and Carlo Rovelli and Freddy P. Zen},
journal= {arXiv preprint arXiv:1404.1750},
year = {2015}
}
Comments
16 pages, 9 figures