Validity of the 'conservation law' in the evolution of cosmological perturbations |
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| Authors: | Martin Gö tz |
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| Affiliation: | Harvard-Smithsonian Center for Astrophysics, 60 Garden St., MS-20, Cambridge, MA 02138, USA,;Physics Department, Brown University, Box 1843, Providence, RI 02912, USA |
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| Abstract: | It is shown that the 'conservation law' for metric fluctuations with long wavelengths is indeed applicable for growing modes of perturbations, which are of interest in cosmology, in spite of recent criticism. This is demonstrated both by general arguments and by presenting an explicitly solvable toy model for the evolution of metric perturbations during inflation. |
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| Keywords: | cosmology: theory large-scale structure of Universe |
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