Article
Gravitational Observables and Local Symmetries
Physical Review D
Document Type
Article
Publisher
American Physical Society
Publication Date
1-1-1993
Disciplines
Abstract
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.
Comments
Originally published by the American Physical Society. Publisher's PDF can be accessed through Physical Review D - Particles, Fields, Gravitation, and Cosmology.
Citation Information
C.G. Torre, Gravitational observables and local symmetries, Physical Review D, vol. 48(6), 1993, p. R2373.