A New Parametrization for Tetrad Gravity

Details A New Parametrization for Tetrad Gravity A New Parametrization for Tetrad Gravity

2001-02-16

arxiv.org/abs/gr-qc/0102074v1

Gen.Rel.Grav. 34 (2002) 189-242

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

50 pages, revtex file

Scientific paper

A new version of tetrad gravity in globally hyperbolic, asymptotically flat at spatial infinity spacetimes with Cauchy surfaces diffeomorphic to $R^3$ is obtained by using a new parametrization of arbitrary cotetrads to define a set of configurational variables to be used in the ADM metric action. Seven of the fourteen first class constraints have the form of the vanishing of canonical momenta. A comparison is made with other models of tetrad gravity and with the ADM canonical formalism for metric gravity.

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