Geometry from quantum particles
Abstract
We investigate the possibility that a background independent quantum theory of gravity is not a theory of quantum geometry. We provide a way for global spacetime symmetries to emerge from a background independent theory without geometry. In this, we use a quantum information theoretic formulation of quantum gravity and the method of noiseless subsystems in quantum error correction. This is also a method that can extract particles from a quantum geometric theory such as a spin foam model.
 Publication:

arXiv eprints
 Pub Date:
 October 2005
 arXiv:
 arXiv:grqc/0510052
 Bibcode:
 2005gr.qc....10052K
 Keywords:

 General Relativity and Quantum Cosmology;
 High Energy Physics  Theory
 EPrint:
 17 pages, LaTex