Abstract
The question of the correspondence between the number of degrees of freedom and the number of polarization states in hybrid metric-Palatini f(R)-gravity is considered. It is shown that the scalar transverse breathing and longitudinal modes are a mixture of one polarization state. The speed of gravitational waves propagation in hybrid f(R)-gravity is calculated.
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ACKNOWLEDGMENTS
The author thanks N.A. Avdeev and B.N. Latosh for discussions and comments on the topics of this paper.
Funding
The work was supported by the Foundation for the Advancement of Theoretical Physics and Mathematics “BASIS.”
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Dyadina, P.I. Polarization and Speed of Gravitational Waves in Hybrid Metric-Palatini f(R)-Gravity. J. Exp. Theor. Phys. 135, 333–338 (2022). https://doi.org/10.1134/S106377612208009X
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DOI: https://doi.org/10.1134/S106377612208009X