Beyond Schwarzschild–de Sitter spacetimes. III. A perturbative vacuum with nonconstant scalar curvature in R+R2 gravity
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DOI: 10.1103/physrevd.107.104009
Abstract: In violation of the generalized Lichnerowicz theorem advocated by Nelson and others, quadratic gravity admits vacua with non-constant scalar curvature. In a recent publication [Phys. Rev. D 106, 104004 (2022)], we revitalized a program that… read more here.
Keywords: gravity; scalar curvature; lichnerowicz theorem; generalized lichnerowicz ... See more keywords