Role of Conformal Three-Geometry in the Dynamics of Gravitation
- 17 April 1972
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 28 (16), 1082-1085
- https://doi.org/10.1103/physrevlett.28.1082
Abstract
The unconstrained dynamical degrees of freedom of the gravitational field are identified with the conformally invariant three-geometries of spacelike hypersurfaces. New results concerning the action principle, choice of canonical variables, and initial-value equations strengthen this identification. One of the new canonical variables is shown to play the role of "time" in the formalism.Keywords
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