Spacetime Lagrangian Formulation of Barbero-Immirzi Gravity
gr-qc
/ Authors
/ 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.