Generalized embedding variables for geometrodynamics and spacetime diffeomorphisms: Ultralocal coordinate conditions

Details Generalized embedding variables for geometrodynamics and spacetime diffeomorphisms: Ultralocal coordinate conditions Generalized embedding variables for geometrodynamics and spacetime diffeomorphisms: Ultralocal coordinate conditions

1992-06-26

arxiv.org/abs/hep-th/9206105v1

J.Math.Phys. 34 (1993) 115-129

Physics

High Energy Physics

High Energy Physics - Theory

16 pages

Scientific paper

10.1063/1.530393

We investigate the embedding variable approach to geometrodynamics advocated in work by Isham, Kucha\v{r} and Unruh for a general class of coordinate conditions that mirror the Isham-Kucha\v{r} Gaussian condition but allow for arbitrary algebraic complexity. We find that the same essential structure present in the ultralocal Gaussian condition is repeated in the general case. The resultant embedding--extended phase space contains a full representation of the Lie algebra of the spacetime diffeomorphism group as well as a consistent pure gravity sector.

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