Perturbations in higher derivative gravity beyond maximally symmetric spacetimes
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DOI: 10.1103/physrevd.100.064022
Abstract: We study (covariant) scalar-vector-tensor (SVT) perturbations of infinite derivative gravity (IDG), at the quadratic level of the action, around conformally-flat, covariantly constant curvature backgrounds which are not maximally symmetric spacetimes (MSS). This extends a previous… read more here.
Keywords: higher derivative; gravity; maximally symmetric; action ... See more keywords