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SUMMARY:Fully general Cauchy evolution of asymptotically AdS spacetimes: t
 he non-linear instability of Kerr-AdS - Lorenzo Rossi\, Queen Mary Univers
 ity of London
DTSTART:20240315T130000Z
DTEND:20240315T140000Z
UID:TALK213241@talks.cam.ac.uk
CONTACT:Xi Tong
DESCRIPTION:In addition to being at the core of the widely employed AdS/CF
 T correspondence\, asymptotically anti-de Sitter (AdS) spacetimes with ref
 lective boundary conditions can serve as the arena for a range of strong g
 ravity effects: arbitrarily small perturbations are bound to remain in the
  bulk\, where they continue to interact and typically become sizeable. Ini
 tially\, I will review a numerical scheme that enables the Cauchy evolutio
 n of these spacetimes to be performed in full generality. Then\, I will pr
 esent the first simulations of the trapping mechanism occurring in the ext
 erior of a Kerr-AdS black hole. This mechanism has been conjectured to cau
 se a non-linear instability\, the existence of which remains a topic of de
 bate. The simulations offer insights into this debate\, providing new pers
 pectives on the non-linear instability of Kerr-AdS.
LOCATION:Potter room/Zoom
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