2007

From the Einstein-Cartan to the Ashtekar-Barbero canonical constraints, passing through the Nieh-Yan functional

Mercuri, Simone

Understand

The Ashtekar-Barbero constraints for General Relativity with fermions are derived from the Einstein-Cartan canonical theory rescaling the state functional of the gravity-spinor coupled system by the exponential of the Nieh-Yan functional.

  • A one parameter quantization ambiguity naturally appears and can be associated with the Immirzi parameter.

Reading the bibliography…