Spacetime Lagrangian Formulation of Barbero-Immirzi Gravity
arXiv:0706.1899 · doi:10.1088/0264-9381/24/16/014
Abstract
We shall here discuss a new spacetime gauge-covariant Lagrangian formulation of General Relativity by means of the Barbero-Immirzi SU(2)-connection on spacetime. To the best of our knowledge the Lagrangian based on SU(2) spacetime fields seems to appear here for the first time.
12 pages, no figures