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- W4380136071 abstract "We present a numerically stable system of (3+1) evolution equations for the nonlinear gravitational dynamics of quadratic-curvature corrections to General Relativity (Quadratic Gravity). We also report on the numerical implementation of these evolution equations. We recover a well-known linear instability and gather evidence that -- aside from said instability -- Quadratic Gravity exhibits a physically stable Ricci-flat subsector. In particular, we demonstrate that Teukolsky-wave perturbations of a Schwarzschild black hole as well as a full binary inspiral (evolved up to merger) remain Ricci flat throughout evolution. This suggests that, at least in vacuum, classical Quadratic Gravity can mimic General Relativity, even in the fully nonlinear strong-gravity regime." @default.
- W4380136071 created "2023-06-10" @default.
- W4380136071 creator A5030403115 @default.
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- W4380136071 date "2023-06-07" @default.
- W4380136071 modified "2023-09-24" @default.
- W4380136071 title "Nonlinear Evolution of Quadratic Gravity in 3+1 Dimensions" @default.
- W4380136071 doi "https://doi.org/10.48550/arxiv.2306.04725" @default.
- W4380136071 hasPublicationYear "2023" @default.
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