Abstract
In this paper, we formulate the gravitational wave equations in the hybrid metric-Palatini gravity and solve these equations to find the polarization states. This newly proposed theory is very successful in explaining the observed phenomenology based on the hybrid combination of Einstein Hilbert action and Palatini formalism of \(f(R)\) gravity. We compare the obtained results of gravitational polarized modes with the existing results in the original approaches of the hybrid combination. The difference in the results is due to the coupling of the Ricci scalar with the trace of the energy momentum tensor.
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Kausar, H.R. Gravitational wave solutions in hybrid metric-Palatini theory. Astrophys Space Sci 363, 238 (2018). https://doi.org/10.1007/s10509-018-3458-z
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DOI: https://doi.org/10.1007/s10509-018-3458-z