Gravitational perturbations of Schwarzschild-AdS5 with analytic SO(3)-symmetric data decay at late times as v^{-2α/C}, with subleading oscillations periodic in log v with period C(y+).
A Stochasticity Threshold in Holography and and the Instability of AdS
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abstract
We give strong numerical evidence that a self-interacting probe scalar field in AdS, with only a few modes turned on initially, will undergo fast thermalization only if it is above a certain energetic threshold. Below the threshold the energy stays close to constant in a few modes for a very long time instead of cascading quickly. This indicates the existance of a Strong Stochasticity Threshold (SST) in holography. The idea of SST is familiar from certain statistical mechanical systems, and we suggest that it exists also in AdS gravity. This would naturally reconcile the generic non-linear instability of AdS observed by Bizon and Rostworowski, with the Fermi-Pasta-Ulam-Tsingou-like quasi-periodocity noticed recently for some classes of initial conditions. We show that our simple set-up captures many of the relevant features of the full gravity-scalar system.
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Tails from the Bulk: Gravitational Decay in AdS$_5$
Gravitational perturbations of Schwarzschild-AdS5 with analytic SO(3)-symmetric data decay at late times as v^{-2α/C}, with subleading oscillations periodic in log v with period C(y+).