Gravitational observables and local symmetries.
نویسنده
چکیده
Using a recent classification of local symmetries of the vacuum Einstein equations, it is shown that there can be no observables for the vacuum gravitational field (in a closed universe) built as spatial integrals of local functions of Cauchy data and their derivatives.
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عنوان ژورنال:
- Physical review. D, Particles and fields
دوره 48 6 شماره
صفحات -
تاریخ انتشار 1993