Conservation Laws for Cosmological Perurbations
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We briefly recall the problem of defining conserved quantities such as energy in general relativity, and the solution by introducing a symmetric background. We apply the general formalism to perturbed Robertson-Walker spacetimes with de Sitter geometry as background. We relate the obtained conserved quantities to Traschen's integral constraints and mention a few applications in cosmology.
7 pages, no figure, published in the Proceedings of the workshop on Cosmology and Time Asymmetry, Peyresq, July 21-31,1996, Int. Jour. Theor. Physics, 36, 2461 (1997)
7 pages, no figure, published in the Proceedings of the workshop on Cosmology and Time Asymmetry, Peyresq, July 21-31,1996, Int. Jour. Theor. Physics, 36, 2461 (1997)