Emergence of General Relativity from Loop Quantum Gravity: A Summary
General Relativity and Quantum Cosmology
2015-06-03 v2
Abstract
A model is proposed to demonstrate that classical general relativity can emerge from loop quantum gravity, in a relational description of gravitational field in terms of the coordinates given by matter. Local Dirac observables and coherent states are defined to explore physical content of the model. Expectation values of commutators between the observables for the coherent states recover the four-dimensional diffeomorphism algebra and the large-scale dynamics of the gravitational field relative to the matter coordinates. Both results conform with general relativity up to calculable corrections near singularities.
Cite
@article{arxiv.1111.2107,
title = {Emergence of General Relativity from Loop Quantum Gravity: A Summary},
author = {Chun-Yen Lin},
journal= {arXiv preprint arXiv:1111.2107},
year = {2015}
}
Comments
16 pages with 1 figure