1997/01/23 by Giorgio Immirzi · 3 citations
Physics and Astronomy · #gr-qc
paper · pdf · doi:10.1016/s0920-5632(97)00354-x
published as Nucl.Phys.Proc.Suppl. 57 (1997) 65-72 · 8 pages, Latex with esprc2.sty, epsf.tex, 3 figures; contribution to the proceedings of the II meeting on Constrained Dynamics and Quantum Gravity, Santa Margherita Ligure
arxiv created 1997/01/23 · arxiv updated 2009/11/30
This is an informal review of the formulation of canonical general relativity and of its implications for quantum gravity; the various versions are compared, both in the continuum and in a discretized approximation suggested by Regge calculus. I also show that the weakness of the link with the geometric content of the theory gives rise to what I think is a serious flaw in the claimed derivation of a discrete structure for space at the quantum level.