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Conservation laws for cosmological perturbations

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Abstract

We briefly recall the problem of defining conserved quantities such as energy in general relativity, and the solution given 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.

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Authors and Affiliations

  1. Département d'Astrophysique Relativiste et de Cosmologie, UPR 176 du Centre National de la Recherche Scientifique, Observatoire de Paris, 92195, Meudon, France

    Nathalie Deruelle & Jean-Philippe Uzan

  2. DAMTP, University of Cambridge, CB3 9EW, Cambridge, England

    Nathalie Deruelle

Authors
  1. Nathalie Deruelle
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  2. Jean-Philippe Uzan
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Deruelle, N., Uzan, JP. Conservation laws for cosmological perturbations. Int J Theor Phys 36, 2461–2468 (1997). https://doi.org/10.1007/BF02768936

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  • DOI: https://doi.org/10.1007/BF02768936

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