Abstract
Equation describing propagation of gravitational waves (GW) over arbitrary curved space-time background is analyzed. New terms, which are absent in the conventional homogeneous and isotropic Friedmann cosmology, are found. Some examples of realistic metric, where these new terms manifest themselves, are presented. Possible implications to very low frequency GW are briefly discussed.
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ACKNOWLEDGMENTS
We thank V.A. Rubakov for a very important comment and discussions.
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This work was supported by grant 20-42-09010 from the Russian Science Foundation.
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Arbuzova, E.V., Dolgov, A.D. & Panasenko, L.A. On Graviton Propagation in Curved Space-Time Background. J. Exp. Theor. Phys. 135, 304–311 (2022). https://doi.org/10.1134/S1063776122090126
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DOI: https://doi.org/10.1134/S1063776122090126