We outline three principles that should guide us in the construction of a theory of canonical quantum gravity: (1) diffeomorphism invariance, (2) implementing the proper dynamics and related constraint algebra, (3) local Lorentz invariance. We illustrate each of them with its role in model calculations in loop quantum gravity. © 2013 Elsevier Ltd.
Publication Source (Journal or Book title)
Studies in History and Philosophy of Science Part B - Studies in History and Philosophy of Modern Physics
Gambini, R., & Pullin, J. (2014). Three principles for canonical quantum gravity. Studies in History and Philosophy of Science Part B - Studies in History and Philosophy of Modern Physics, 46 (1), 164-169. https://doi.org/10.1016/j.shpsb.2013.09.010