ar X iv : g r - qc / 9 80 70 73 v 1 2 8 Ju l 1 99 8 Tetrad Gravity : I ) A New Formulation . Luca
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چکیده
A new version of tetrad gravity in globally hyperbolic, asymptotically flat at spatial infinity spacetimes with Cauchy surfaces diffeomorphic to R3 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. The phase space expression of various 4-tensors is explicitly given.
منابع مشابه
ar X iv : g r - qc / 9 80 70 73 v 3 1 4 Ju l 1 99 9 Tetrad Gravity : I ) A New Formulation
A new version of tetrad gravity in globally hyperbolic, asymptotically flat at spatial infinity spacetimes with Cauchy surfaces diffeomorphic to R3 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 ...
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تاریخ انتشار 2008