Abstract
We give an explicit form for the Lorentzian vertices recently introduced for possibly defining the dynamics of loop quantum gravity. As a result of doing so, a natural regularization of the vertices is suggested. The regularized vertices are then proven to be finite. An interpretation of the regularization in terms of a gauge fixing is also given.
- Received 14 June 2008
DOI:https://doi.org/10.1103/PhysRevD.79.084034
©2009 American Physical Society